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The coastwide Atlantic sturgeon abundance index has risen steadily since 2013, while the Hudson’s own Atlantic juvenile index has declined in recent years.

21 October 2026 at 18:00
A hand holds a large Atlantic sturgeon above a hatchery tank

A coastwide index of Atlantic sturgeon abundance has been rising steadily since 2013, the Atlantic States Marine Fisheries Commission found in its 2024 stock assessment update, published in August 2024.

The update extends the commission’s 2017 benchmark assessment with data from 2016 to 2022. It combines nine fishery-independent surveys into a single index of relative abundance, which the commission describes as variable from 1990 to 2022.

The composite index had a 100 per cent probability of being above its 1998 value, the year a coastwide moratorium on Atlantic sturgeon fishing took effect, and showed a statistically significant positive trend over the time series. The probability that total mortality exceeded the assessment’s threshold was less than 2 per cent.

Several states had closed their Atlantic sturgeon fisheries in the mid to late 1990s. New York imposed its own statewide moratorium in 1997.

The increase appears as a steady upward trend in the composite index. Most of the nine individual surveys showed either no trend or an increase. The commission still rates Atlantic sturgeon as depleted relative to historic levels, both coastwide and in every regional population it assessed.

That term covers more than the directed fishing that ended in 1998. The commission said the term acknowledges bycatch mortality, ship strikes and reductions in productivity from habitat loss. Bycatch in other fisheries, for which data begin in the 2000s, has generally been decreasing in recent years, the update said, except for estimates from gill nets in the federal observer programme.

Results for individual populations were more mixed. The New York Bight and Carolina indices had average probabilities of 59 per cent and 77 per cent of sitting above their reference year values. The other three populations came in below 50 per cent, with the Chesapeake Bay lowest at 27 per cent. The Gulf of Maine had a 56 per cent probability that total mortality exceeded the threshold.

The Hudson River, part of the New York Bight population, is presumed to be one of the two healthiest Atlantic sturgeon populations in the United States, alongside the Altamaha, according to the New York State Department of Environmental Conservation’s species status assessment for its 2025 State Wildlife Action Plan.

The same document reports that the department has monitored juvenile Atlantic sturgeon in the Hudson since 2004 and built a relative abundance index from fish aged about one to six years. The trends in that survey were initially positive but have declined in recent years, the assessment says.

A New York juvenile survey covering 2004 to 2022 is one of the nine indices in the commission’s coastwide composite. Genetic work on more than 500 juvenile and subadult sturgeon caught at Haverstraw Bay between 2017 and 2022 assigned the majority to the Hudson River population. The commission said this indicates the long-term survey data collected at Haverstraw Bay primarily reflects demographic trends in the Hudson River population.

Earlier estimates cited by the department put the Hudson’s spawning population at about 870 adults a year, against 343 for the Altamaha. A study published in 2020 and cited in the commission’s update used side-scan sonar and acoustic telemetry to estimate the Hudson’s 2014 spawning run at 466 fish, with a 95 per cent confidence interval of 310 to 745.

The commission said that once reported spawning intervals are taken into account, the 2014 estimate appears similar to the earlier total adult population estimate.

Atlantic sturgeon were listed under the Endangered Species Act in February 2012. The New York Bight, Chesapeake Bay, Carolina and South Atlantic populations are designated endangered. The Gulf of Maine population is designated threatened. The species was reported present in 32 US rivers, with spawning in at least 14 of them, according to figures from 1998 cited in the New York assessment.

The Hudson’s Atlantic sturgeon are distinct from the river’s shortnose sturgeon, a separate species. On 27 June 2025 the department announced a study, coauthored by the US Geological Survey, that estimated the Hudson’s shortnose population at nearly 70,000, a figure that does not describe Atlantic sturgeon numbers.

The coastwide moratorium is meant to stay in force until each spawning stock has at least 20 protected year classes, a point the New York assessment says could take 40 years.

Sources:

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Astronauts on the Moon could shelter from radiation, micrometeoroids and extreme temperatures inside a lava tube, and NASA is sending a suite called GIMLI to scan beneath the Marius Hills Pit to see whether the pit opens into one

20 October 2026 at 18:00
Orbital image of the Marius Hills pit, a dark hole in a lunar rille, with a magnified inset

WASHINGTON, NASA has selected a radar, seismic, gravity and camera suite called GIMLI to be deployed at the Marius Hills Pit and test from the surface whether the pit opens into a lava tube.

The agency named GIMLI on 30 September 2026 as one of three payload suites chosen under its PRISM programme for the Moon Base effort, to fly on a commercial lander under the Commercial Lunar Payload Services scheme. No launch date and no lander vendor have been named. The principal investigator is Nathaniel Putzig of the Planetary Science Institute.

The pit lies in the Marius Hills, an ancient volcanic region. In 2017 a team using the Lunar Radar Sounder on Japan’s Kaguya spacecraft reported echoes near the pit that it interpreted as an intact lava tube, and candidate tube sites line up with mass deficits in gravity maps from the GRAIL spacecraft, the Japanese space agency said. None of that has shown whether the hole leads anywhere.

“Readers should not conclude that the pit is an opening to a lava tube,” Gareth Morgan, GIMLI’s deputy principal investigator at the institute, told Space Daily in an email on 19 October 2026.

High-resolution images from NASA’s Lunar Reconnaissance Orbiter show the pit walls “form an overhang above a subsurface void space that is wider than the diameter of the pit itself”, Morgan said. The size of that void is unknown, and so is whether it is an isolated cavity or part of a larger cave system.

Similar pits exist in volcanic terrain on Earth, Morgan said. “Sometimes they are skylights into lava tubes, but in other cases they are isolated shafts/cavities caused by volcanic-tectonic activity,” he said. “GIMLI has been designed to differentiate between the two scenarios.”

“It has long been speculated that lava tubes, which on Earth are remnants of drained lava flows, exist on the Moon, but this has never been definitively confirmed,” Morgan said. “GIMLI will enable us to address this for the first time.”

“Confirming these void spaces now could shift future habitat planning, offering natural, ready-made shelters that provide crucial thermal stability and shielding from deadly ionizing radiation and micrometeoroid bombardment,” the agency said in its 30 September 2026 release.

GIMLI’s ground-penetrating radar is supplied by the Norwegian Space Agency, according to the institute. Honeybee Robotics, a Blue Origin company, is building the active-source seismic system, the gravimeter and the cameras, and is managing the project.

Each instrument should respond to a tunnel in its own way, Putzig told Space Daily in an email on 19 October 2026. “With the ground-penetrating radar, we would expect a strong reflection from the top of the lava tube back to the antenna, due to the high dielectric contrast between rock and the vacuum within the lava tube,” he said.

“For the active-source seismic, we would expect strong reflected and refracted acoustic waves from the perimeter of the lava tube, but the acoustic waves will not pass through the void space,” Putzig said. “For the gravimeter, we would expect to see a strong, negative gravity anomaly when passing over the lava tube, as it represents a locally reduced mass in what is otherwise dense rock.”

“If we see all of these effects, it will represent very strong evidence that the pit does in fact represent a collapse feature into a much more extensive lava tube,” he said.

Elevator and sealed walls

Published figures for the pit’s depth disagree. NASA’s description of the orbiter’s images puts the pit at about 34 metres deep. The Lunar Reconnaissance Orbiter Camera team gives 40 metres in a 2017 update. Putzig put the drop at about 60 metres.

“There’s a sharp drop of about 60 m between the pit rim and the floor of the pit, so while first explorations could be done by flying or rappelling into the pit, it may become necessary to install an elevator to move people and equipment in and out of a shelter,” Putzig said.

“Creating a shelter would require walling off either end of a portion of the lava tube and pressurizing the interior, but cross-cutting fractures could make it necessary to seal off the tube walls as well to avoid leaks,” he said.

In July 2022 NASA reported that Diviner data from the orbiter and computer modelling showed shaded locations within some lunar pits “always hover around a comfortable 63 F (about 17 C)”. Radiation shielding inside the Marius Hills Pit has not been measured on site.

Morgan said a null result would still be useful. “If we don’t find evidence of a cave system at our Marius Hills landing site, our measurements will still allow us to test alternative hypotheses for lunar pit formation, which in turn will provide new insights into volcanic activity, such as localized volcanic-tectonic processes,” he said.

The pit walls also expose layers of rock. The suite’s camera mast “will be used to inspect these outcrops (from a safe distance) to measure the number, thickness and origin of the layers”, Morgan said, with the results compared against the geophysical surveys to reconstruct the site’s sequence of eruptions.

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In 1965 an astronaut smuggled a corned beef sandwich into orbit, and NASA’s chief asked if he should be disciplined

19 October 2026 at 18:00
Gus Grissom and John Young in spacesuits and helmets strapped into the Gemini III spacecraft, seen through the open hatch

NASA Administrator James Webb pressed Manned Spacecraft Center director Robert Gilruth for a report on whether John Young should be disciplined for smuggling a corned beef sandwich onto Gemini III, NASA’s History Office says.

Young had fellow astronaut Walter “Wally” Schirra, the backup command pilot, buy the sandwich, then pocketed it in his pressure suit as he headed to the launchpad on March 23, 1965, Jennifer Ross-Nazzal, NASA’s human spaceflight historian, wrote in the History Office essay on March 20, 2025.

Nearly two hours into a flight of almost five hours, Young offered it to commander Gus Grissom, historian James Anderson wrote in a NASA Ames essay published on March 17, 2022. Grissom took a bite, found the rye crumbling, and put the sandwich in his own suit pocket.

The whole exchange lasted less than a minute. Congress raised the matter with NASA leadership at hearings on the agency’s 1966 budget, Ross-Nazzal wrote.

Webb told the committee that “this is the United States of America’s space program and, as a matter of policy, we are not going to permit individuals to superimpose their judgment as to what is going to be taken on these flights.”

He added: “I think it is fine for Dr. Gilruth to take a very strong position with respect to the individuality of these men, but from those of us who have to look at the totality of the matter, this was not an adequate performance by an astronaut.”

Representative George E. Shipley likened the Gemini cabin to a “surgeon’s operating room” and called Young’s antics “foolish”. Crumbs behind an instrument panel could interfere with flight equipment and cost the mission and its crew.

George Mueller, associate administrator for Manned Space Flight, told the committee that NASA did not “approve [of] unauthorized objects such as sandwiches going on board the spacecraft.” He said the agency had “taken steps, obviously, to prevent recurrence of corned beef sandwiches in future flights.”

Mueller also said: “There was no detriment to the experimental program that was carried on, nor was there any detriment to the actual carrying out of the mission because of the ingestion of the sandwich.”

Gilruth defended the crew. Such antics, he told the committee, helped crews “break up the strain” of spaceflight.

Gilruth said he hesitated “to be too strict in the future by laying down a lot of rules for men who have this responsibility and who, in all the flights so far, have done such good jobs.”

Webb read the incident as a sign that Gilruth was too lax with his astronauts, Ross-Nazzal wrote, and pressed him for a report to determine whether Young should be disciplined or at the very least reprimanded. Young never received a formal reprimand.

The sea urchin experiment

Near the approved food box beside Grissom sat a canister of sea urchin eggs, Arbacia punctulata, Anderson wrote. It was NASA’s first fundamental space biology experiment in orbit.

The canister held eight identical chambers. Turning its handle was meant to start fertilization in specific chambers, with a fixative halting cell division at different stages through the flight.

The handle broke when Grissom turned it, and the experiment’s objectives were not achieved. NASA redesigned the canister, substituted frog eggs, and flew it on Gemini VIII and Gemini XII.

By the end of the program, cell division had been shown to occur in microgravity without detrimental effects attributable to lower gravity.

Gemini III had none of the strict diet controls that other Gemini experiments on astronauts often required, so a few bites of the sandwich “would not have disrupted any of the planned experiments,” Anderson wrote.

Young hatched the idea during training, when Grissom grew “bored” with the dehydrated food, Ross-Nazzal wrote. Bringing a sandwich “seemed like a fun idea at the time” to Young.

One goal of the flight was to test NASA’s food packaging and its waste disposal procedures. Young called the chicken bites “barely edible” in his post-flight debriefing.

On the air-to-ground recordings, Grissom asked, “Where did that come from?” Young said: “I brought it with me.” He added: “Let’s see how it tastes.” Then: “Smells, doesn’t it?”

Two days after the flight, reporter Bill Hines asked at the postflight press conference what became of the sandwich. “How did you find out about that?” Young said, then laughed and said Grissom “ate the sandwich.”

Starting with Gemini IV, crews had to submit a list of items they planned to carry. Sandwiches were prohibited, along with bulky, heavy or metal objects that could affect spacecraft equipment.

The incident did not harm Young’s career. He became the first astronaut to fly to space six times, on two Gemini, two Apollo and two space shuttle missions. He also served as chief of the Astronaut Office for 13 years.

Sources:

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A buried crater under the town of Ames, Oklahoma, that produces oil and gas was dated to the wrong era by about 100 million years, and its new age of about 370 million years puts it close to a mass extinction that wiped out much of the sea’s life

18 October 2026 at 17:59
Rock face with ridged, cone-shaped shatter cone fractures in the Santa Fe impact structure, New Mexico

Austin, Texas: A meteorite impact buried under the town of Ames, Oklahoma, struck about 370 million years ago, nearly 100 million years later than previously believed, University of Texas at Austin researchers have found.

The study, published in July 2026 in Meteoritics & Planetary Science as an open access paper, dated zircon crystals from granite struck by the impact. Zircon is a mineral that forms small crystals and is used in uranium-lead dating.

The earlier age of 467 million years placed the impact in the Ordovician period. It was grouped with a series of North American impacts centred around 467.5 million years ago, called the Ordovician Meteor Event, according to a University of Texas press release.

The new date puts Ames in the Late Devonian, close to the Frasnian-Famennian mass extinction about 372 million years ago. The release says that event led to the extinction of a huge percentage of marine life on Earth.

Whether the impact and the extinction are connected remains an open question.

“Our results establish a new hypothesis that the Ames impact is linked to the Late Devonian mass extinction, but they do not demonstrate the causal relationship,” Elizabeth Catlos, lead author and associate professor in the Department of Earth and Planetary Sciences at UT’s Jackson School of Geosciences, said in an email.

“Establishing this connection requires additional evidence, such as finding impact-related material in Late Devonian sedimentary rocks, identifying other impact structures of this age and understanding their environmental consequences,” she said.

Catlos said she had “a high degree of confidence in the age”. It came from two independent radiometric dating approaches, laser ablation and ion-beam methods, applied to zircon grains taken directly from the impacted granite, she said.

For an impact structure, the strongest age constraint comes from dating minerals in the impacted material directly and showing that they record the impact, she said. That is what the team did.

“No matter what technique we used, it was coming back to this younger signal,” Catlos said in the university’s press release. The release says the result means Ames could not have been part of the Ordovician Meteor Event.

Doubts over the fossil date

The old date was biochronological, meaning it came from fossils. Researchers had found teeth of conodonts, eel-like creatures that lived during the Ordovician, in rock from the site. The teeth were probably already millions of years old when the asteroid struck and got jumbled in the impact, Catlos said in the release.

Catlos said in an email that she does not question the identification of the Ordovician conodonts. “The issue is whether they remain in their original stratigraphic position and can therefore reliably date the impact itself,” she said.

The conodont evidence came from a conference abstract and a PhD dissertation, Catlos said. Those sources did not go through the same formal peer review as a journal paper, but they gave the historical basis for assigning an Ordovician age to the structure.

To show the zircons recorded the impact, the team worked with NASA to image the crystals using cathodoluminescence and electron backscatter diffraction, two imaging methods. A zircon hit by an impact recrystallises in a specific way that these methods reveal, the release says.

Danny Stockli, dean of the Jackson School and a co-author, said in the release that uranium-lead dating of zircon is the most accurate way to tell when such events occurred. Microstructures in zircon can also record the shock pressures of impacts, he said.

He said he would like to see the same done for more impact sites across the continent to build a more accurate timeline of these events.

Catlos said in the release that a more accurate timeline for mass extinctions and other big moments in Earth’s history is needed to understand how the planet works. The question is whether such extinctions were driven by an extraterrestrial force or an interior one such as a series of massive volcanic eruptions, she said.

In her email, Catlos said the findings allow researchers to investigate a possible connection that had not been considered before.

The work was begun by Andrew Parisi, a Jackson School graduate student who collected the Ames rock core from the Oklahoma Geological Survey, extracted the zircons and helped date them. He graduated in 2018 and has since died, as has co-author Michael Brookfield. Sean Gulick and Mark Cloos of the Jackson School also contributed.

The Ames impact structure is a major oil and gas producer, the release says. The crater is more than eight miles wide and lies about 20 miles southwest of Enid under 9,000 feet of sediment, according to the American Oil & Gas Historical Society.

It went unrecognised until 1991, when Continental Resources found an oilfield there. Many geologists had believed impact craters were unlikely places for petroleum, the society says.

Sources:

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Nobody can agree where space starts, and the 20 kilometres in dispute now matter to astronaut wings, space tourism and hypersonic weapons

15 October 2026 at 17:59
Earth's curved horizon from the International Space Station with a thin amber airglow band above the blue atmosphere and stars behind

There is no line where the atmosphere stops. It thins the way a beach gets wetter towards the sea, until at some point you are in the water and nobody can say exactly when that happened. So the edge of space is not something anyone discovered. It is something people chose, and they chose differently.

For decades that disagreement cost almost nobody anything. It is starting to. Tourist rockets fly into the disputed band with paying passengers and come back down. Hypersonic military vehicles pass through it. The question of which number is right has turned into a question about astronaut wings, ticket sales and, eventually, sovereign airspace.

Three numbers, one of them legal and it is blank

The familiar figure is 100 kilometres, the Kármán line. The FAI, the world air sports records body, uses it to separate aviation records from astronautics records. A 2023 FAI presentation by Nicolas Bérend says the federation set it in 1960, with a group of scientists that included Theodore von Kármán, “for separating aeronautics and astronautics records”. The name came slightly earlier: Andrew G. Haley coined “Kármán line” in a 1957 paper after discussions with Kármán. That is what the 100 kilometre figure is, a records-keeping convention with a date on it.

The American figure is 50 miles, about 80 kilometres. The US Air Force used it for its astronaut wings, and the Federal Aviation Administration used the same threshold for the commercial astronaut wings it handed out until it ended that programme after 2021. In 2005 NASA gave civilian astronaut wings to three X-15 pilots, retired NASA pilot Bill Dana and the families of the late John B. McKay and Joseph A. Walker, acknowledging “their flights above 264,000 feet altitude”. That is 50 miles. When those flights happened only the military had wings to hand out, so civilian pilots flew just as high and got no badge. Dana’s first flight into space took him 58.13 miles above the Mojave Desert on 1 November 1966.

The legal figure does not exist. The 1944 Chicago Convention gives every state complete and exclusive sovereignty over the airspace above its territory. The 1967 Outer Space Treaty says outer space is not subject to national appropriation. Neither treaty says where one ends and the other begins, a gap a 2017 briefing to the UN space committee’s legal subcommittee lays out plainly. The committee has had the item on its agenda since 1966. Inside it the USSR repeatedly proposed 100 or 110 kilometres and the United States rejected any definition at all. The subcommittee’s 2026 draft report still carries “Matters relating to the definition and delimitation of outer space”, sixty years on.

What the physics says depends on what you ask it

Kármán himself was blunt about this. In 1961 lectures quoted in the FAI presentation he said that where atmosphere ends and space begins “is a judiciary rather than a scientific problem”, and he proposed a range, 300,000 to 400,000 feet, roughly 91 to 122 kilometres, rather than a line. The 100 kilometre figure was a round number inside that range.

Bérend’s lift-based analysis for the FAI in 2023 points to about 110 kilometres. McDowell’s argument, based on satellite drag and orbital survival, points lower.

Jonathan McDowell, an astronomer who has worked at the Harvard-Smithsonian Center for Astrophysics, made the satellite case in a 2018 paper in Acta Astronautica, “The edge of space: Revisiting the Karman Line”, free to read on arXiv. He looked at the orbits of real satellites. An elliptical orbit whose lowest point sits at 100 kilometres can survive for long periods. A satellite whose lowest point drops below 80 kilometres is “highly unlikely to complete its next orbit”. That lowest point is the perigee. McDowell argues that this makes roughly 80 kilometres a useful boundary.

Two other things happen to land in the same place. Meteors, moving much faster than satellites, usually break apart somewhere in the 70 to 100 kilometre range, a sign that the atmosphere starts to bite there. The mesopause, a boundary layer in the upper atmosphere, lies in the same broad region, though its height varies with latitude and season and is not fixed at 80 kilometres. McDowell also notes that 80 kilometres falls within 500 metres of the old 50-mile astronaut wings line. Those are separate ideas that land in roughly the same place. He suggests adopting exactly 80 kilometres as a better convention, one that fits what satellites actually do.

He is also clear about how arbitrary the field has been. Citing an earlier survey by Goedhart, he counts almost 30 different proposals between 1951 and 1962, ranging from 20 kilometres to 400. A spread of twenty to one, inside a single decade, tells you how little the physics forced anyone’s hand before McDowell checked the orbits.

The FAI took the argument seriously. In a statement on 30 November 2018 it said recently published analyses presented “a compelling scientific case” for lowering the line from 100 to 80 kilometres, and it proposed a joint workshop with the International Astronautical Federation for 2019. The workshop did not move the line. The 2023 presentation’s own conclusion is that the boundary of space “is, in any case, a matter of convention”, and the commission’s March 2025 plenary minutes record “the decision to retain the 100 km value”. The FAI has looked at 80, and has chosen 100.

Why the 20 kilometres now matter

On 11 July 2021 Richard Branson flew on Virgin Galactic’s Unity 22 to an apogee of about 86 kilometres. Nine days later Jeff Bezos flew on Blue Origin’s New Shepard past 100. Two days before Branson’s flight, Blue Origin posted that New Shepard was designed to fly above the Kármán line “so none of our astronauts have an asterisk next to their name”. By McDowell’s number, and by the US number, Branson’s passengers went to space. By the FAI’s, they did not. Virgin Galactic has kept selling tickets in that gap ever since, even through its current pause in flights while it builds its next ships. The dispute is no longer about an X-15 pilot’s badge. It is about what a company can truthfully print on a brochure.

The military version is less visible and more serious. Some hypersonic boost-glide weapons pass through the band on the way up and down; a 2023 Congressional Budget Office analysis models one US design reaching about 120 kilometres before spending most of its flight at 30 to 40 kilometres. For a vehicle passing over another country at 90 kilometres, an agreed boundary could help determine whether it had entered sovereign airspace. Neither an astronaut-wings rule nor an air sports convention settles that question. Nor would being in space put a weapon beyond the law: the Outer Space Treaty says activities there are carried out in accordance with international law, including the UN Charter. An agreed boundary could clarify the sovereignty question, although it would not by itself settle the legality of a weapon’s passage or use. It is the piece that is missing.

We put that to McDowell by email. “I think indeed the choice of a boundary does start to matter more as there is more activity in that liminal region,” he wrote, “both tourist suborbital flights and hypersonic military tests.”

So why has the world not switched to 80? “These things take a long time, decades,” he said. “I think my view is slowly gaining ground but I don’t know if it will ever win out!”

What to make of it

The honest reading is this. Physics does not hand you one number. Different physical criteria produce different answers: about 110 kilometres in Bérend’s analysis, about 80 in McDowell’s, and Kármán’s own answer was a range. Every line anyone has drawn is a convention. McDowell’s case is that 80 is a better convention than 100 because it matches what satellites actually do, and that is a fair case. But physics can inform the choice without settling what the boundary should mean in law.

What has changed is not that vehicles reached the band. X-15 pilots were there in the 1960s. What has changed is that the band now has customers, competitors and weapons in it, and each of them is in space according to one authority and not according to another. The edge of space was always going to be a decision. For decades, states managed without agreeing on it. Commercial flights and military vehicles now give that unresolved question practical consequences, without making agreement inevitable. McDowell’s own estimate is decades, if ever.

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In 1967 the Americans had a spare rocket at Woomera, and Australia built a 45-kilogram satellite to fly on it in eleven months

14 October 2026 at 17:59
A Redstone-Sparta rocket beside its launch gantry at Woomera, South Australia.

On 28 November 1967, at the Woomera rocket range in outback South Australia, a six-hour countdown started on time and ticked all the way down to 30 seconds before launch. Then it stopped. A heating-cooler unit attached to the rocket had failed to eject, and everyone had to come back the next day.

I’m not a space engineer. I came across this story the way most people probably would, through a passing mention of Australia’s first satellite, and the more I read the more amazing it got. The rocket on that pad was a spare, left over from an American weapons test and given to Australia. The 45-kilogram satellite on top of it had been designed and built in Australia in about eleven months. And when it finally flew, at 2:19 the following afternoon, Australia had launched its first satellite, from its own soil, on an American rocket.

It was called WRESAT, short for Weapons Research Establishment Satellite. Here’s how it happened.

A spare rocket nobody wanted to ship home

The opportunity came out of a weapons program. During 1966 and 1967, Woomera hosted SPARTA, a joint US, UK and Australian project to gather data on the conditions nuclear warheads would face as they plunged back into the atmosphere. Ten American Redstone rockets were brought to Woomera for it, along with re-entry vehicles and an American team to fly them. If the name Redstone sounds familiar, it should. Modified Redstones launched America’s first satellite in 1958 and its first two astronauts, Alan Shepard and Gus Grissom, in 1961.

Only nine of them were needed, as Kerrie Dougherty OAM, space historian at the Australian Space Agency, notes in a paper on Australia’s early satellites. That left one spare. By then the Redstone was an obsolete rocket, and as Dougherty explained to me by email, the Americans “weren’t particularly interested in taking the spare back to the US”. Shipping it home wasn’t cheap either. As the Honeysuckle Creek history site puts it, “To send them back to the US would be a considerable expense.”

Project manager Des Barnsley, whose account is reproduced on that site, wrote that by late 1966 it was clear at least one of the ten vehicles would be surplus, and the idea of using it to launch an Australian satellite “was unofficially raised”. Who suggested it first has never been completely clear, Dougherty says. The Americans may have made the offer on their own, or WRE staff may have hinted that a rocket nobody wanted to take home would make a nice gift. Either way, the US decided it would be “a nice gesture of support to Australia” to donate it.

The catch: it had to fly before the end of 1967

The gift came with a deadline. The experienced American launch team would prepare and fire the rocket for the WRE, but only before they packed up and went home. That meant the launch had to happen as soon as possible after SPARTA wrapped up, and “definitely before the end of 1967”.

Everyone brought something to the table. The US supplied the rocket and a launch team from the aerospace company TRW “at no cost”. NASA agreed to track the satellite and collect its signals through STADAN, its worldwide network of tracking stations, “also at no cost”. The UK supported the launch operations through its long involvement with Woomera. Australia’s job was the satellite itself.

In other words, three countries lined up a rocket, a launch crew and a global tracking network, and Australia had less than a year to build something worth putting on top.

Eleven months, start to finish

Defence Science and Technology, the Weapons Research Establishment’s successor, records that design work began in early 1967 as a joint venture between the WRE and the University of Adelaide, and that the satellite was designed, developed, built and launched in eleven months. Barnsley’s own figure, written later, was “just less than twelve months”.

Whichever figure you use, the whole thing fitted inside a single year, with the team working towards a launch deadline that couldn’t move.

Not everyone thought it could be done. “There was plenty of scepticism from the US,” Dougherty told me. When I asked her what made it possible to build WRESAT so quickly, her answer was one word: “necessity!” If the satellite wasn’t ready before the US team left, the launch wouldn’t have gone ahead, or would have had to wait until a WRE team could be trained to prepare and fire the rocket themselves.

It also helped that the Australians weren’t starting cold. Barnsley put the speed down to work that had started long before the offer arrived. The WRE and the University of Adelaide’s physics department had spent years working together on upper atmosphere research using sounding rockets, small locally built rockets that carry instruments high into the sky and then fall back to Earth rather than going into orbit. WRESAT’s scientific payload, developed by the University of Adelaide, grew directly out of the instruments they had been flying on sounding rockets since 1962. The team already knew how to build the instruments. What they had never done was put them into orbit.

“With a lot of ingenuity, innovation and pragmatic decisions, they were able to have WRESAT ready to fly by November 1967,” Dougherty said.

The key people named on the history site are Barnsley as project manager, Professor J H Carver of the University of Adelaide, Bryan Rofe as officer in scientific charge, and Dr Don Woods. By Barnsley’s account, the outside contracts cost “a few hundred thousand dollars”.

Who deserves the credit?

I also asked Dougherty how she would split the credit between the two countries. She started with the Americans. The project “simply would not have occurred if the rocket had not been offered by the US”, the launch was handled by the experienced US team, and NASA provided the global tracking.

“But the rapid design and construction of the satellite itself, and its scientific payload, was an all-Australian project, albeit with advice and guidance from the US.”

Weighing it all up, this is where she landed.

“So I guess that I would have to put it at 50/50, or maybe even 60/40 in favour of the US, since their offer made the whole project happen. Australia gained entry to the ‘Space Club’ at a greatly discounted price!”

The tight schedule did come at a cost. The biggest drawback of working to the US timetable, Dougherty said, was that there was no time to design and build solar panels, so WRESAT had to run on batteries, “which severely limited its operational lifespan”.

Bumping around in the back of a truck

The satellite stayed attached to the rocket’s spent third stage in orbit, so there are two weights for it. The satellite on its own was a cone about 1.6 metres long, weighing 45 kilograms. Together with the burned-out stage it rode on, the whole package that reached orbit weighed about 72.5 kilograms and was a little over two metres long.

My favourite detail comes from the curator’s notes on Australian Screen Online. The American team was reportedly horrified to see WRESAT bumping around in the back of an open truck. The Australians’ response was that if it couldn’t survive the short ride, it was unlikely to survive lift-off.

The same notes record that very few dignitaries turned up to watch when it finally launched on the 29th.

What it did up there

WRESAT went into a near-polar orbit, so each lap carried it high over the far north and far south of the planet, without passing directly over either pole. Its path was a stretched oval, ranging from a couple of hundred kilometres above the Earth to more than 1,200 kilometres.

Its instruments measured ultraviolet light and X-rays coming from the Sun, along with a faint ultraviolet glow, called Lyman alpha, made when sunlight is scattered by the thin cloud of hydrogen surrounding the Earth. In plain terms, it was measuring kinds of sunlight that the upper atmosphere soaks up before they can reach the ground, which you can only properly study from above. Defence’s history describes the aim as improving understanding of how the upper atmosphere affects climate and weather, and helping US research programs gather physical data. The readings came back by radio on 136.350 MHz.

That was the big step up from the sounding rockets the team had flown before. A sounding rocket only spends a few minutes high enough to take these readings before it falls back to Earth. WRESAT could take them orbit after orbit, for days. Short as its working life was, Dougherty says it “obtained valuable data for comparison with the sounding rocket data already obtained at Woomera”.

With no solar panels, WRESAT simply transmitted until its batteries ran flat. According to DST, it completed 642 orbits and sent back scientific information during 73 of them, roughly its first five days. It then kept circling silently for weeks until it re-entered the atmosphere and burned up on 10 January 1968, over the Atlantic Ocean west of Ireland.

There’s one more neat footnote. As space writer Andrew LePage notes at Drew Ex Machina, the rocket that carried Australia’s first satellite was also the last known Redstone ever flown.

A donated rocket and a lot of goodwill

The successful launch brought congratulations from the US, including a message from the US Vice-President. Among them was a note from Gilbert Ousley at NASA in Maryland: “There were many sceptics here concerning the time scale, but you proved them wrong.”

Barnsley was blunt about where the whole thing came from. He wrote that “without the outstanding relationship between Australia and the US DoD and NASA the project could never have been contemplated, let alone undertaken.”

That seems fair to me. The rocket, the launch crew and the tracking network all belonged to someone else, and the window was a matter of months. What Australia brought was a group of people who already knew how to build the instruments, and who finished them inside a deadline that was set before the work began.

Dougherty summed it up better than I can. “WRESAT was a fine example of Australian technical and scientific skills, innovation and our inventive ‘make do’ tradition, made possible by the generous donation of the launch vehicle by the US.”

That’s what amazes me most. It wasn’t one country going it alone. It was three countries deciding a leftover rocket was too good to waste, and a small team in Adelaide and Woomera making sure it wasn’t.

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MIT built a ring of copper wire around Earth in 1963, and more than 20 clumps of it are still in orbit

8 October 2026 at 17:59
Project West Ford's spring-loaded dipole dispenser and copper-coloured needle canister in a glass display case

In May 1963, about 3,600 kilometres above Earth, a radio command reached a small package riding piggyback on an Air Force satellite. Inside were 480 million copper wires, each 1.78 centimetres long and less than two hundredths of a millimetre thick, set in a binder made to vanish in sunlight. As the binder turned straight to vapour in the vacuum, wires began to drift free and spread into a thin ring around the planet.

That was Project West Ford, built by MIT’s Lincoln Laboratory for the US Air Force and meant to carry long-distance radio that solar flares and jamming could not knock out. Lincoln Laboratory says the belt of loose wires had been swept from orbit by late 1965, on schedule. Many wires never came loose. Space Daily’s check of two public satellite catalogues, CelesTrak and Jonathan McDowell’s GCAT, on 8 October 2026 finds 36 to 39 clumps of West Ford wire still listed in orbit, 63 years later. CelesTrak has an orbit from the past month for 26 of its 39, and 23 of those are objects both catalogues agree are West Ford wire still in orbit. The most recent recorded reentry was in April 2024.

Space Daily told the story of the experiment itself in September. This piece follows the wire left behind, and sets two early forecasts about it, known here from the papers’ published summaries, beside six decades of tracking records.

A radio mirror for a fragile sky

In the early 1960s, much long-distance radio still worked by bouncing signals off the ionosphere, the electrically charged layer of the upper atmosphere. That mirror was unreliable. As the Harvard Crimson explained in May 1963, signals off the ionosphere could be jammed, and “a large solar flare can cause a radio fadeout by impairing the ionosphere’s ability to transmit signals.”

For a military with forces spread around the world, that was a serious weakness. Lincoln Laboratory’s own retrospective on the project describes communications for command and control as one of the Defense Department’s “acute problems” of the time. The idea, proposed by Walter Morrow of Lincoln Laboratory and Harold Meyer of Ramo-Wooldridge, was a belt of metal wires that would serve, “in effect, as an artificial ionosphere.” Morrow’s plan, the Crimson wrote, was meant “to provide a jam-proof, fail-proof, destruction-proof communication system.”

Each wire was a tiny antenna. A metal rod about half a wavelength long resonates with a radio wave, so the needles were sized for the X-band microwaves the ground stations used. Sixty-foot dishes would aim a powerful beam at the belt, and the scattered echo would reach a receiving dish across the continent. NASA’s Echo 1A balloon had used a similar passive trick in 1960 with a single giant reflector. West Ford tried it with a cloud.

The first attempt, in October 1961, failed. Lincoln Laboratory’s account says the dispenser’s ejection mechanism “didn’t spin up, so no dipoles were released.” NASA’s 2013 review puts it differently, saying the wires “did not dispense individually,” and the Crimson described “four or five useless clumps of wire floating around the earth.” The 1963 package packed its wires into a spinning cylinder, so that sunlight could turn the binder to vapour and release the needles from its surface, according to the engineering paper describing it.

A ring that worked, briefly

For a short window, it worked. The belt took about 40 days to close into a complete ring, according to a 1964 analysis of its orbit. Voice, data and teletype passed between West Ford stations at Millstone Hill in Massachusetts and Camp Parks in northern California.

The data rates fell fast. A 1964 report on the communications tests records digital data sent at 20,000 bits per second at first, sliding to around 100 bits per second. Digitised voice was sent during the first week. After about 50 days the belt was generally too sparse for the full scattering measurements, and the only traffic sent through it was teletype.

By late 1965, the Lincoln retrospective says, it was clear the future “belonged not to orbiting passive dipoles but to satellites with active transponders,” spacecraft that receive a signal and send it back out amplified.

The astronomers’ revolt

Astronomers had fought the project from the start, fearing the wires would spoil their view of the sky at both optical and radio wavelengths. The International Astronomical Union formally objected in 1961, and the Crimson reported that both the IAU and the US National Academy of Sciences set up “watchdog committees” because of West Ford.

The objection went beyond copper. Sir Bernard Lovell, head of Britain’s Jodrell Bank radio observatory, put it this way, as quoted by the Crimson: “The damage lies not with this experiment alone, but with the attitude of mind which makes it possible without international agreement and safeguards.”

The engineers’ answer was a short lifetime by design. The wires were so light for their size that sunlight itself would push on them, stretching their orbits into long ovals until the low point dipped into the atmosphere and air drag pulled them down. The Lincoln account calls this giving the dipoles “a high area-to-mass ratio.” In 1964 the Lincoln team concluded that the wires, loose or clumped, “never interfered with any astronomical observations,” a verdict from the project’s own scientists.

NASA’s Orbital Debris Program Office counts the 1967 Outer Space Treaty among the legacies of Project West Ford. Its Article IX says a state that “has reason to believe” an activity or experiment it plans “would cause potentially harmful interference” with other nations’ peaceful use of space “shall undertake appropriate international consultations” before going ahead. The office also notes that the international Committee on Space Research set up a group on potentially harmful space experiments after the failed 1961 mission. By 2013, NASA said, that group had evolved into the panel that hosts the committee’s discussions of orbital debris.

The clumps that stayed up

The loose needles behaved as predicted. In a 1966 paper in Science, Lincoln physicist Irwin Shapiro reported that radar confirmed the individual wires had reentered “in precise accord with predictions.” Calculations, he wrote, indicated that the wires survived reentry and “floated gently back to Earth,” though “the probability of finding one is minuscule.”

The trouble was how many had never separated. A 2013 review by NASA’s debris office says a post-mission investigation found only 25 to 45 percent of the planned 480 million dipoles dispersed properly. The rest are believed to have stayed stuck together, and the clumps were later picked up by the US Space Surveillance Network. NASA notes they are “still strongly affected by solar radiation pressure.”

Lincoln’s team expected those clumps to come down too, mostly. The published summary of their 1964 assessment said “the orbital lifetime of most of these clusters will be less than ten years; some, however, will orbit indefinitely.” The summary of Shapiro’s December 1966 paper went further: “Some dipole clusters remain in orbit but almost all should return to Earth within the next 2 years.”

That second forecast can at least be set against the clumps already in the US satellite catalogue when the paper appeared. The paper’s published summary does not say whether “almost all” meant only the clusters in that catalogue, but if it did, the record does not bear it out.

CelesTrak, a widely used public satellite-tracking site, lists 147 objects from the 1963 launch under the name “Westford Needles,” and the order of their catalogue numbers suggests roughly when each was first logged. About 30 clumps were already on the books by November 1966. None of them came down in the next two years. None came down within ten years of launch either. The first fell in November 1974, and CelesTrak still lists 16 in orbit today, 12 of them with orbits updated in the past month.

Across all 147, the record is slow too. Only 13 came down within ten years of launch, all of them clumps catalogued after 1966, and most of the 104 marked as decayed fell between the 1970s and the 1990s. Three came down in the 2010s and three more since 2020, in November 2020, October 2022 and April 2024.

Counting wire in the dark

CelesTrak shows 43 “Westford Needles” objects still in orbit, but not all of them are wire. Jonathan McDowell’s independent GCAT catalogue identifies two as solar array covers from the satellite that carried the package and two as parts of the West Ford package itself. That leaves 39 clumps in CelesTrak’s listing. NASA said in 2013 that two “Westford Needles” entries are assessed to be from a different mission, without saying which.

GCAT counts 36 West Ford wire objects in orbit, and five of those carry a flag meaning probably still in orbit but lost, with no recent tracking data. The two lists disagree on whether five objects are still up. GCAT records three that CelesTrak shows as orbiting as having reentered decades ago, though two of those still have current CelesTrak orbits. It assigns a fourth, which also has a current CelesTrak orbit, to a 1969 launch, and it keeps a fifth as lost that CelesTrak says reentered in 1989.

Only 26 of CelesTrak’s 39 have orbits updated in the past month, and three of those are objects GCAT disputes. That leaves 23 that both catalogues call West Ford wire and that have a current orbit, which is the firmest count of what is still circling. Small clumps on stretched, shifting orbits are hard to follow, and a missing public orbit does not prove an object is gone, or that it is still there.

The dates need care too. Fourteen objects in CelesTrak share one reentry date, 17 October 1987, which looks more like a catalogue clean-up than fourteen clumps falling on the same day. And the catalogue-number method used above to date when clumps were first logged is an inference, not a field the catalogues record.

NASA’s own figure in 2013 was 46 clumps. Both catalogues record six reentries since then, yet 46 minus six does not give either current count, most likely because entries have been added and reassigned along the way. Comparing the 2013 number with today’s is not a clean measure of decline.

The 1964 forecast is harder to hold anyone to. It covered all clusters, including small ones radar may never have caught, and it allowed that “some” would orbit indefinitely.

None of the sources reviewed for this piece reports a collision involving West Ford wire, and the 1964 team judged collisions with spacecraft “improbable.”

Looking for needles

West Ford left something else behind on the ground. Lincoln Laboratory had already been funded to develop a powerful ground terminal “of the sort that a higher-capacity West Ford system would use.” The retrospective explains the name it was given: Haystack, “because its main job was to look for needles in space.”

The future went to active satellites. Haystack stayed. In the same 2013 newsletter that counted the West Ford clumps, NASA described the Haystack radar sampling small orbital debris for its debris office.

Somewhere on Earth, more than a hundred million copper hairs from 1963 presumably lie where they settled, too fine to find. Overhead, more than 20 tangles of the same wire are still being tracked, nudged on every orbit by the sunlight that was supposed to bring them down.

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A Dutch schoolteacher clicking through galaxy images on a volunteer website in 2007 flagged a green smudge she couldn’t identify and asked what it was. It turned out to be a cloud of gas lit by a quasar that had already switched off, and astronomers named the object after her.

24 September 2026 at 14:25

In August 2007, a 25-year-old primary school teacher in the Netherlands called Hanny van Arkel was working her way through the online classification queue of a citizen science project called Galaxy Zoo, which had been asking members of the public to look at individual galaxy images from the Sloan Digital Sky Survey and sort them into categories like spiral or elliptical. She had signed up because Brian May, the guitarist from Queen, had mentioned Galaxy Zoo on his personal website, and she was a fan. On one of the images she was classifying, sitting a little way off from the target galaxy, there was a small bright blue-green smudge that didn’t match anything on the sorting list she had been given. It wasn’t a spiral, it wasn’t an elliptical, and it didn’t look like the kind of image artefact she had been told to ignore. She emailed one of the astronomers running Galaxy Zoo, Chris Lintott at Oxford, to ask what she was looking at. Neither Lintott nor any of his colleagues immediately knew.

What Galaxy Zoo was for

Galaxy Zoo had gone live in July 2007, and the reason it existed was that automated computer algorithms of the time still couldn’t reliably classify galaxy shape from a photograph. Human eyes could, and the Sloan Digital Sky Survey had produced far more galaxy images than professional astronomers could work through themselves. The project put roughly 900,000 galaxy images online, invited anyone in the world to help sort them, and by the time it had reached full operation it had drawn something like 100,000 volunteers doing exactly that. Van Arkel was one of them. What the project’s designers had expected was mainly the sorting output itself, a very large, very reliable catalogue of galaxy morphology. What they had not fully anticipated was that some of the volunteers, looking at those images with fresh eyes, would spot things that hadn’t been catalogued at all. Van Arkel’s blue-green smudge was one of the first, and turned out to be one of the strangest.

What was actually there

The nearby galaxy in the image was called IC 2497. It sits in the constellation Leo Minor, about 650 million light-years from us, and up to 2007 it had been catalogued as an unremarkable spiral. The smudge to one side of it, once astronomers started looking properly, turned out to be a cloud of highly ionised gas the size of a small galaxy, glowing green because of an extraordinarily strong emission line from doubly ionised oxygen. The peculiar thing was the ionisation itself, which was much too energetic to be produced by any ordinary source in the object’s own vicinity. Whatever was lighting the gas up had to be delivering a hard ultraviolet radiation field of essentially quasar intensity. But when the team pointed X-ray telescopes at IC 2497 to look for that quasar, there was nothing there. According to the paper Chris Lintott, Kevin Schawinski, William Keel and colleagues eventually published in Monthly Notices of the Royal Astronomical Society in 2009, the best explanation for that combination of a highly ionised gas cloud and an apparently quiet host galaxy was that IC 2497 had contained a bright quasar in the recent geological past which had since switched off, and that what the cloud was showing was the light echo. The gas is far enough from the black hole that the radiation from the quasar’s active phase is still travelling across it, illuminating it, even though the quasar itself has already gone quiet at the source. The Lintott paper framed the object as, potentially, the first direct evidence that a quasar could shut down on timescales of order a hundred thousand years, which is very short compared to what most models of quasar life cycles had assumed.

What followed the discovery

Follow-up observations turned Hanny’s smudge into a considerably bigger object than it had first appeared. Time was granted on the Hubble Space Telescope, which is heavily oversubscribed and hard to get on, and the Hubble imaging revealed that the visible green Voorwerp was only the illuminated tip of a much larger streamer of hydrogen gas stretching across roughly 300,000 light-years around IC 2497, most of it not currently lit by anything. According to NASA Goddard’s account of the follow-up work, Hubble also picked up clusters of newly forming stars in a small region at the tip of the Voorwerp facing the host galaxy, evidence that gas being blown out of IC 2497 had compressed part of the cloud enough to trigger a modest starburst. Bill Keel, the astronomer at the University of Alabama who led much of the follow-up work, then went back through Hubble archival imagery of 15,000 galaxies that had once hosted quasars, using a further 200 Galaxy Zoo volunteers to look for anything comparable to Hanny’s original object. They found eight more similar structures across the archive. The population of quasars that had switched off within the last hundred thousand years was, on the strength of that survey, no longer an implausible or isolated phenomenon. It was a category.

What the naming actually meant

The object was catalogued in the astronomical literature as Hanny’s Voorwerp, using the Dutch word for object, and it kept that name because that was how the discovering team referred to it and because there wasn’t a more formal designation available. Astronomical objects picked up by professional surveys ordinarily get catalogue numbers rather than personal names, and objects picked up by amateurs traditionally get named after the amateur only in a narrow set of cases, most famously comets. What made this case different was that van Arkel hadn’t spotted anything by pointing a telescope of her own at the sky. She had spotted it in an image on a screen that a professional survey had already collected, that professional astronomers had already looked at, and that the target galaxy of the image had already been catalogued as ordinary. The relevant instrument was her attention. Galaxy Zoo has since gone on to spawn a whole family of related citizen science projects across biology, climate science and history, some of them running under the Zooniverse umbrella that Lintott and his collaborators established. Hanny’s Voorwerp remains the discovery that most clearly shows what those projects are actually for, which is putting a very large number of unpredictable human observations against a very large volume of automatically collected data, and letting the anomalies fall out.

The post A Dutch schoolteacher clicking through galaxy images on a volunteer website in 2007 flagged a green smudge she couldn’t identify and asked what it was. It turned out to be a cloud of gas lit by a quasar that had already switched off, and astronomers named the object after her. appeared first on Space Daily.

To reach Jupiter, Juice took a detour past Venus, then returned to Earth on 28 September for a successful gravity boost while using our Moon to rehearse the navigation it will need around Jupiter’s icy moons.

23 September 2026 at 08:23
Illustration of ESA’s Juice spacecraft flying past Earth, with its curved trajectory traced across the frame

ESA’s Jupiter Icy Moons Explorer returned to Earth on 28 September 2026, but home was only a waypoint. During a successful flyby 8,640 kilometres above the Indian Ocean, Earth’s motion and gravity deflected Juice’s path by 20 degrees and increased its speed relative to the Sun by 3.5 kilometres per second.

The encounter was the third of four planned gravity assists. It followed the first lunar-Earth double flyby in 2024 and a Venus flyby in August 2025. One more Earth pass in January 2029 will finally place Juice on its transfer towards Jupiter, where it is due to arrive in July 2031.

The mission turned this return into more than a trajectory correction. Juice’s navigation camera pointed at the Moon’s horizon to test a technique intended to improve optical navigation during selected encounters in a sequence of 35 future flybys of Ganymede, Callisto and Europa.

The Moon is not part of the gravity assist this time. It is a known target on which engineers can rehearse the image geometry they will later need around worlds hundreds of millions of kilometres away.

The detour through Venus began with a slowdown

The route looks inefficient only if distance is the sole measure. A direct flight would require a much more energetic launch and an enormous propellant load, first to reach Jupiter and then to prevent a nearly 6,000-kilogram spacecraft from flying straight past it.

A gravity assist avoids carrying most of that fuel. In the Sun’s frame, a spacecraft exchanges a minute amount of momentum with a moving planet as gravity curves its trajectory. The result can be a gain or loss of heliocentric speed, depending on the direction of approach. The planet’s own motion is what makes the encounter more than a simple U-turn.

Juice’s first assist in August 2024 deliberately removed energy. The Moon increased its speed by 0.9 kilometres per second relative to the Sun, positioning it for Earth one day later. Earth then reduced its heliocentric speed by 4.8 kilometres per second; overall, the lunar-Earth sequence turned the path by about 100 degrees.

That world-first lunar-Earth sequence sent Juice inward towards Venus while saving an estimated 100 to 150 kilograms of propellant. SpaceDaily’s account of the completed trajectory reset described how the two encounters worked together.

Venus supplied the next turn on 31 August 2025, bending the solar orbit back towards Earth and adding speed. The flyby had no sightseeing component. Juice was built for the cold outer Solar System, so it pointed its 2.5-metre high-gain antenna towards the Sun as a heat shield and kept its remote-sensing instruments inactive.

The operation followed a communications failure caused by a software timing bug that left a signal amplifier switched off. SpaceDaily covered the recovery and final preparation for the Venus encounter. ESA subsequently described the spacecraft as successfully through that flyby and on course for Earth.

Earth supplied a precisely aimed bend

According to ESA’s flyby report, closest approach occurred over the Indian Ocean at 11:45 UTC on 28 September. Earth deflected Juice’s trajectory by 20 degrees and increased its speed relative to the Sun by 3.5 kilometres per second.

Those numbers are not produced by an engine burn at perigee. They are the consequence of entering Earth’s moving gravitational field along a carefully chosen line and leaving it in a new direction. A mistimed arrival would change both the size and direction of the result.

The navigation campaign began on 17 August. Six correction opportunities were reserved at intervals including four weeks, two weeks, one week and three days before the encounter. ESA reported after the flyby that only one small manoeuvre had been required; enhanced tracking continues until 10 October.

The reserved final emergency manoeuvre was not needed. Juice passed above Australia before closest approach and then swept over the Indian Ocean along the planned trajectory.

This boost still does not send Juice straight to Jupiter. Jupiter is not yet in the right place. The 2026 encounter has shaped another solar orbit, returning Juice to Earth in January 2029 for the final push onto a path that intercepts Jupiter in July 2031.

Earth’s shadow turns geometry into a power problem

Before closest approach, Juice spent eight hours and 39 minutes in Earth’s shadow, from 19:24 UTC on 27 September until 04:03 UTC on 28 September. With no sunlight reaching its solar arrays, the spacecraft operated from batteries alone.

That eclipse did not threaten the flyby, but it limited how freely the payload could be used. Teams prioritised the most valuable observations during the battery-powered interval rather than switching on every instrument continuously.

Across a wider window from 23 September to 3 October, all ten science instruments were scheduled to gather data on Earth and the Moon, though not continuously or all at once. ESA expects to publish selected images and spectra after the data reach Earth and are evaluated. Both bodies are useful calibration targets because their shapes, surfaces and surrounding environment are already measured far better than the Jovian system.

Juice also spent several days inside Earth’s magnetotail, the long nightside extension of the magnetic field shaped by the solar wind. The measurements can test particle and field instruments in a complex but comparatively familiar plasma environment before they face Jupiter’s larger, faster-rotating and more intense magnetosphere.

Two small monitoring cameras photographed the passage as well. They should not be confused with NavCam or the JANUS science camera. The monitoring cameras provide engineering views of the spacecraft and its surroundings; NavCam extracts geometry; JANUS is designed for scientific imaging. NavCam also returned an image of Madagascar taken two minutes after closest approach.

The Moon stands in for three icy worlds

During this Earth approach, the navigation camera pointed towards the lunar horizon, also called the limb. An image of that curved boundary contains information about the apparent centre and angular size of the Moon. Compared with a predicted view, it can sharpen the estimate of the spacecraft’s position relative to the target.

ESA said the lunar observations were intended to test a technique for improving optical-navigation accuracy, but had not published an evaluated performance result at the time of this update. The careful claim is therefore that Moon-limb images tested the method, not that the September campaign has already proved a specific performance gain.

NavCam first operated on a real world during the 2024 lunar-Earth encounter. In its account of that first in-space test, ESA showed raw, uncalibrated lunar images and explained that the camera would later use the shapes of Jupiter’s moons to support navigation.

The 2026 geometry was different. Juice did not fly close to the Moon, and lunar gravity was not the manoeuvre. The Moon was observed from the Earth-approach trajectory as a reference object. Calling it a rehearsal is accurate; calling this another lunar gravity assist would not be.

Why a camera must share the navigation load

Ground-based radio tracking remains essential, but a complete Earth communications loop is too slow for fresh local relative-position updates during a close Jovian flyby. Near Jupiter, a radio message can take roughly 50 minutes each way. The location of the moon relative to the approaching spacecraft also matters more than an absolute position measured in isolation.

SpaceDaily’s earlier account of Juice’s image-based navigation system described onboard software that detects the edges of a moon in NavCam images. Those edge measurements allow the system to refine relative geometry without waiting through the complete Earth communications loop.

The underlying system is called Enhanced Attitude Guidance through Limb Extraction, or EAGLE. It is intended for use on the inbound leg of selected moon encounters, with mission planners deciding case by case when the technique should support guidance and pointing.

This does not mean Juice will improvise a tour or replace its flight-dynamics team. Ground controllers design and command the encounters. Optical navigation supplies a timely local measurement during sequences in which a small targeting error could move an instrument footprint by many kilometres or turn a planned close pass into a miss.

NavCam is also not a substitute for the science payload. It is a wide-field engineering camera optimised to tell the spacecraft where a world is. Scientific cameras and spectrometers ask what that world is made of and how its surface changes. A blurred-looking limb can still be excellent navigation data.

Earth is a rehearsal, not the destination

After Jupiter arrival, Juice will make 35 flybys of Ganymede, Callisto and Europa before entering orbit around Ganymede in 2034. Each encounter must satisfy navigation, power, communications, radiation and instrument-pointing constraints at the same time.

SpaceDaily has also reported an engineering-model rehearsal of a Callisto flyby, in which simulated images were projected into a navigation camera to exercise the flight software. That laboratory test supplied a synthetic moon; September’s observation supplied a real horizon to the flight camera in space.

Earth and the Moon offer known targets, stronger communications and time to improve procedures. At Jupiter, the encounters will be distant, fast and scientifically scarce. The apparent detour through Venus has preserved the fuel needed to conduct that tour, while the lunar images supplied something equally valuable: a navigation method tested before the real icy moons fill the camera. ESA had not yet released the evaluated performance result, so the size of any improvement remains unreported.

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In 2001, Taco Bell anchored a 40-foot floating target off Australia and promised every American a free taco if the falling Mir space station hit it — and the company took out an insurance policy against a direct strike before the 130-ton station came down

23 September 2026 at 07:12

In March 2001, one of the largest objects humans had ever put in orbit was about to fall out of the sky, and a fast-food chain saw a marketing opportunity in the wreckage.

The object was Mir, the Russian space station — about 130 tonnes of hardware that had circled Earth for 15 years. Russia had run out of money to keep it up, so engineers were steering it down for a controlled, fiery death over the empty South Pacific. And floating out there in the ocean, waiting for it, was a giant bullseye that said “Free Taco Here.”

The bullseye in the sea

The stunt was pure Taco Bell. The company built a 40-by-40-foot vinyl target — its bell logo ringed by a bullseye, the words “Free Taco Here” in bold letters — and anchored it in the South Pacific about ten miles off the coast of Australia, along Mir’s expected re-entry path.

The promise: if the core of the plummeting space station struck the target, every single person in the United States would get a free taco. Roughly 280 million people. The company set up a countdown clock on its website and fed a hungry international press corps four days of coverage, tying its brand to what news anchors were solemnly calling one of the great celestial events of the era.

It was a promise engineered to be impossible to lose — and, almost certainly, impossible to pay out.

Why the insurance was the smart part, not the scared part

The detail everyone remembers is that Taco Bell bought an insurance policy against a direct hit. It’s tempting to read that as nerves — as if the company genuinely feared it would owe America ten million tacos. The truth is closer to the opposite, and it’s what makes the stunt a small masterpiece.

Taco Bell hired a Dallas firm called SCA Promotions — a company whose entire business is insuring exactly these kinds of prize offers. For a modest premium, SCA takes on the risk of a giant payout that is extremely unlikely to happen. And a piece of a space station hitting a 40-foot raft in the open Pacific was about as unlikely as promotions get: the target was a speck, the ocean is unimaginably vast, and Mir was coming down along a track thousands of miles long.

So the insurance wasn’t fear. It was the mechanism. It let Taco Bell dangle a genuinely enormous prize — free tacos for the entire country, an estimated $10 million liability — while its actual exposure was just the small, fixed cost of the premium. The company got to look daring and generous while a specialist quietly absorbed a risk that was never going to materialize. That is the whole trick of prize-indemnity marketing, performed here on a planetary stage.

Mir missed, obviously

On March 23, 2001, Mir blazed back into the atmosphere and broke apart, its surviving fragments splashing down in the South Pacific — closer to Chile than to Australia, and nowhere near the taco raft. The bullseye bobbed, un-struck. No free tacos for America.

Nobody at Taco Bell was surprised, or sorry. The company had never needed Mir to hit the target; it had needed the world to spend four days talking about Taco Bell and a space station in the same sentence, which the world dutifully did. As a fallback, the chain rolled out its real promotion — the one it had wanted to push all along — a “consolation” deal of two tacos for 99 cents. The falling space station was just the world’s most expensive attention-getter, and Taco Bell got to use it for the price of a vinyl sheet and an insurance premium.

The genius of aiming at the impossible

Strip the stunt down and it’s a clean lesson in how modern marketing actually works, which is why people still tell the story a quarter-century later.

Taco Bell risked almost nothing and bought enormous, global, free publicity — the kind money can’t easily buy directly — by attaching itself to a genuine, once-in-a-generation news event and making a promise it was statistically guaranteed not to have to keep. The insurance policy, the part that sounds like caution, was really the engine of the audacity: it converted a terrifying-sounding liability into a fixed, trivial line item, freeing the company to be as bold as it liked.

The Russians spent 15 years and billions of dollars building Mir, and its final act, on the way down, was to serve as a free billboard for a taco chain that had wagered a coupon it knew it would never have to honour. Mir aimed for an empty patch of ocean and hit it. Taco Bell aimed for the front page and hit that. Only one of them was ever really trying to miss.

The post In 2001, Taco Bell anchored a 40-foot floating target off Australia and promised every American a free taco if the falling Mir space station hit it — and the company took out an insurance policy against a direct strike before the 130-ton station came down appeared first on Space Daily.

Every private lander that reached the lunar surface before 2025 either crashed or tipped over—then Blue Ghost touched down upright in March 2025 and returned data throughout an entire lunar day before losing power after sunset.

17 September 2026 at 08:40
Detailed waxing gibbous Moon against a dark sky, representative image

Firefly Aerospace’s Blue Ghost landed in Mare Crisium at 3:34 a.m. Eastern time on March 2, 2025. It arrived upright, deployed its communications hardware and began a surface campaign that lasted from lunar morning to lunar sunset.

That sequence made Blue Ghost the first fully successful commercial Moon landing, but not the first commercial soft landing. Intuitive Machines’ Odysseus had reached the surface a year earlier and continued transmitting from its side. The distinction matters because Blue Ghost’s achievement was not just surviving touchdown. It was remaining in the attitude required to use its power, communications and instruments as designed.

There is also a language trap in the phrase “lunar day.” At one place on the Moon, sunrise to the next sunrise takes about 29.5 Earth days. Blue Ghost operated through the daylight half of that cycle, logging 346 hours in sunlight, then continued for just over five hours after sunset. That is the approximately 14-Earth-day surface mission that lunar engineers often call one lunar day.

Three private attempts had reached the surface first

Before 2025, three privately led landers had reached the Moon. SpaceIL’s Beresheet crashed in April 2019 after a failure during descent. Japan’s ispace lost HAKUTO-R Mission 1 in April 2023 when its navigation software concluded too early that the spacecraft was at the surface. The lander exhausted its propellant and fell.

Odysseus changed the category in February 2024. It made the first commercial soft landing and returned engineering and science data for more than 160 hours, but it came to rest on its side. NASA’s lunar mission catalogue records both parts of that result: a soft landing and a posture that interfered with communications.

Astrobotic’s Peregrine is not part of this count because a propulsion failure prevented it from reaching the lunar surface. Government missions such as Japan’s SLIM are also outside a comparison about privately built landers. “Private” describes the organisation that built and operated the spacecraft, not the origin of every dollar. Blue Ghost’s customer was NASA, and its ten payloads flew through NASA’s Commercial Lunar Payload Services programme.

One of those earlier failures has acquired a second history. Space Daily’s account of Beresheet examined the tardigrades carried inside its lunar library. That unusual cargo should not obscure the engineering result: the lander reached the Moon at destructive speed.

Upright was an operational condition

A lander’s posture determines which solar cells see the Sun, whether its high-gain antenna can point toward Earth and whether instruments can deploy into clear space. A tipped vehicle may remain alive, as Odysseus showed, but its mission becomes an improvised recovery exercise. Power, heat flow and radio links no longer match the geometry tested on Earth.

Blue Ghost launched on January 15 and spent 45 days travelling to the Moon. It descended near Mons Latreille in the Mare Crisium basin, using terrain-relative navigation and hazard avoidance to compare camera images with stored maps and select safe ground. After touchdown, images of the deck, horizon and lander’s shadow confirmed that it was stable.

Standing up did not guarantee a successful mission, but it preserved the design assumptions needed for one. Space Daily’s pre-landing coverage described the flight software and photovoltaic assemblies supporting the journey. On the surface, those systems could finally work in the orientation for which they had been built.

The daylight clock started at landing

The landing was timed near local sunrise. That gave the solar-powered spacecraft almost the maximum useful interval before the Sun disappeared. As the Sun climbed, the thermal problem changed from cold to heat. Firefly reported surface temperatures around 121 degrees Celsius near lunar noon and temporarily powered down some systems as part of planned thermal management.

The Moon turns once relative to the Sun in about 29.5 Earth days. A point near the equator therefore receives roughly two weeks of daylight followed by roughly two weeks of night. Blue Ghost’s mission record gives the precise operational tally: 346 hours of daylight, or 14 days and 10 hours, followed by just over five hours in lunar night.

In this context, returning data “throughout” a lunar day means that the campaign extended across the full sunrise-to-sunset interval. It does not mean that every instrument transmitted without interruption every second, nor that the lander survived an entire day-and-night cycle.

Ten NASA payloads used the time

All ten NASA science and technology payloads powered on, collected data and operated on the surface. Lunar PlanetVac used compressed nitrogen to lift, move and sort regolith without a conventional scoop. LISTER drilled below the surface to measure thermal conductivity and heat flow. The six SCALPSS cameras photographed how the descent engine plume disturbed the ground, then continued observing through sunset.

The Lunar GNSS Receiver Experiment, or LuGRE, acquired GPS and Galileo signals at lunar distance and calculated navigation fixes in lunar orbit and on the surface. Space Daily reported the result when NASA confirmed it, noting that satellite navigation signals designed for Earth could still be detected far beyond their intended service region.

The Electrodynamic Dust Shield used electric fields to remove abrasive grains from test surfaces, while the Lunar Magnetotelluric Sounder measured electric and magnetic fields to probe the Moon’s interior. These were not all-or-nothing demonstrations. Each generated data that still required calibration and analysis after the lander stopped transmitting.

Sunset was a planned finish

Blue Ghost was not designed to survive the lunar night. When sunset arrived on March 16, falling solar input began the expected end of the mission. The lander kept operating for a little more than five hours into darkness. Firefly received the final data at about 6:15 p.m. Central Daylight Time.

This was power loss in the literal sense, but not an unexpected electrical failure. The vehicle had reached the boundary built into its energy and thermal budgets. As Space Daily has explained, a typical lunar night lasts about 354 hours and exposed surface temperatures can fall toward minus 173 degrees Celsius. Surviving it requires heaters, insulation and stored energy that add mass to a lander.

Firefly’s end-of-mission release reported more than 119 gigabytes returned during the trip and surface campaign, including 51 gigabytes of science and technology data. Blue Ghost also photographed a total eclipse from the Moon and recorded lunar sunset. Those images are part of the data, not merely souvenirs; researchers can use them to investigate dust behaviour and reports of horizon glow.

A successful landing is more than the touchdown

Blue Ghost did not make commercial lunar landing routine. Four days later, Intuitive Machines’ Athena landed near the south pole but ended on its side, sharply limiting operations. ispace’s Resilience crashed during its June 2025 attempt. The title’s pre-2025 boundary is important: the mixed record continued after Blue Ghost.

Nor should the mission be treated as privately financed exploration detached from government. NASA purchased the delivery and supplied the payloads, while Firefly supplied the lander, flight team and mission operations. CLPS deliberately divides responsibility that way in an attempt to buy lunar delivery as a service while companies develop reusable institutional knowledge.

Blue Ghost’s place in the record rests on the whole chain: controlled descent, upright touchdown, stable power and communications, ten operating payloads and a planned shutdown after sunset. The landing lasted seconds. The evidence of success accumulated over the next 346 daylight hours.

The post Every private lander that reached the lunar surface before 2025 either crashed or tipped over—then Blue Ghost touched down upright in March 2025 and returned data throughout an entire lunar day before losing power after sunset. appeared first on Space Daily.

Beginning in 1990, New York City repaved streets with asphalt containing crushed recycled glass. By 1995, crews had used 250,000 tons of glass in resurfacing applications across the city, including a section of Fifth Avenue in front of the Plaza Hotel.

17 September 2026 at 06:00

For a few years in the early 1990s, a lot of New York streets sparkled. Picture a Manhattan avenue at dusk, wet from a passing shower, the streetlights and headlights catching something in the road surface itself. Not the usual dull black, but a faint, restless glitter, as if the asphalt had been dusted with something. That shimmer was crushed bottles. The city had figured out how to grind its glass waste into the road.

The material had a name that told you exactly what it was: glassphalt. It went from a curiosity nobody trusted, to something people demanded outside their own buildings, and then it quietly disappeared. And it’s a small case study in why good recycling ideas so often don’t stick.

The glittering street, and why the city made it

Asphalt is mostly sand and gravel held together by a black binder. Glassphalt is what you get when crushed glass replaces part of that sand and gravel.

The Federal Highway Administration, in its guidelines on waste glass in pavement, says road-surface mixes with roughly 10 to 15 percent crushed glass perform fine. From 1989, the city’s transportation department started putting the glass content of its mix at about 10 percent.

The FHWA called the New York program the “most aggressive” glass-recycling paving effort in the country. From 1990 through 1995 the city used roughly 225,000 metric tons, about 250,000 tons, of glass in resurfacing. By 1991, crews had already laid glassphalt on nearly 900 lane-miles of Manhattan and Brooklyn streets.

What made the idea clever, as far as we can tell, is the kind of glass it used. Bottle recyclers want clean glass sorted by color. They won’t buy the mixed-color material that piles up at the bottom of a recycling stream. Glassphalt didn’t care about color. It could swallow exactly the low-value waste glass that nobody else wanted and turn it into road. The city reported saving about $500,000 a year by using crushed glass in place of some sand and gravel, and keeping 38,000 tons of glass out of landfills in the process.

From public suspicion to actual demand

People did not warm to it right away. A road that shimmers looks, at first glance, like something is wrong with it. But the turnaround, if the accounts from the time are right, was fairly complete.

Harold Watson, the transportation department’s assistant commissioner for asphalt operations, had become something of an in-house champion for the material. Watson said in 1991: “Now, when we do a road, if we don’t have glass on it, people come in and start complaining.”

That’s a nice story about public mood, not a measured fact, and it comes from a fan of the material, so we’d hold it loosely. Watson was clearly frustrated by a quieter resistance too. In his telling, “There’s a lot of people who can’t find anything wrong with glassphalt but won’t say anything good about it.” Read that as one supporter’s view rather than a neutral account, but it captures the odd spot the material was in: hard to fault, hard to fully endorse.

The Plaza, and a request for more sparkle

The clearest sign that the public had come around involved one very visible stretch of Fifth Avenue. After the city resurfaced the section in front of the Plaza Hotel with glassphalt, the hotel’s owner, Donald Trump, wanted the surrounding streets given the same treatment. A recycled-glass road surface had become something worth lobbying for outside a luxury hotel.

There’s something funny in that. The exact same crushed bottles a bottle plant would reject as worthless were, when spread across Fifth Avenue and lit up after rain, a selling point. The sparkle did real marketing work that the engineering never asked for.

Why the biggest glass-paving program in the country faded

None of the appeal saved it. The program’s central weakness was that its raw material came from curbside recycling collection, and collection is expensive.

During a budget crisis, Mayor David Dinkins floated suspending the recycling operation to save about $65 million a year, which would have cut off the glass supply. Commissioner Lucius Riccio said at the time: “That would be a shame. We’re doing a record amount of paving and we could use all the glass they could give us.” That tension is the whole story in miniature. The paving side wanted all the glass it could get, and the collection side that fed it was the first thing on the chopping block when money got tight.

What we take from a road paved with bottles

New York didn’t invent glassphalt. Baltimore had paved at least 17 streets with it from the mid-1970s through the mid-1980s, chasing the same sparkle.

What New York proved was that the idea could run at real scale, absorb hundreds of thousands of tons of the exact glass nobody else wanted, and win over a skeptical public along the way.

The sparkle was arguably the least interesting thing about it. It got the headlines, it got Trump lobbying, it made a wet avenue look faintly enchanted. But the real achievement was much plainer: a workable use for low-value mixed glass that would otherwise cost money to bury.

The reason it faded had nothing to do with whether the roads glittered, and everything to do with the fragile system behind it, the collection network and the raw cost of glass against dirt-cheap gravel. A recycling idea can be sound as engineering and still lose to logistics. That, more than the shine, is what a road made of bottles has to teach.

The post Beginning in 1990, New York City repaved streets with asphalt containing crushed recycled glass. By 1995, crews had used 250,000 tons of glass in resurfacing applications across the city, including a section of Fifth Avenue in front of the Plaza Hotel. appeared first on Space Daily.

A Wisconsin family sold 173 acres at Port Washington for 10.2 million dollars, ground with a fair market value of 590,000. Developers spent at least 125 million dollars buying more than 1,500 acres around the project, and a 672-acre data center is now going up about a mile inland from Lake Michigan.

17 September 2026 at 04:00
Spacious and polished industrial facility with glossy epoxy flooring in Houston, Texas.

One family in Port Washington, Wisconsin sold 173 acres for $10.2 million. On the county’s books, that same ground was valued at $590,000. That comes to roughly $59,000 an acre, about 17 times the assessed figure, according to a Wisconsin Watch analysis of Ozaukee County property records. 

It is tempting to read it as pure luck. Somebody’s farmland turned out to be worth twenty times what the tax roll said, the buyers overpaid, and a few landowners got rich. Parts of that are true. But the 17x gap is telling you something more specific, and the distance between what the assessor saw and what a data center developer would pay is the real story.

This article is for general information only, not financial, tax or real estate advice, and it is not a property appraisal or valuation. The prices discussed reflect particular transactions and should not be used to estimate what your own land is worth. Consult a qualified local appraiser or adviser before making property decisions.

What a 17x number is really measuring

A fair market value on a tax roll estimates what a buyer would pay for a parcel used the way it has always been used. In Port Washington, that meant farmland priced as farmland. It was never meant to capture what the same dirt is worth to a company assembling a site for a giant computing campus a mile inland from Lake Michigan.

The developer is Denver-based Vantage Data Centers, which broke ground on a 672-acre campus called Lighthouse on the city’s north side. It is the Midwest site of OpenAI and Oracle’s Stargate project. Vantage describes it as 2.5 million square feet of building, with completion targeted for 2028. A project that size does not want scattered plots. It wants one large, continuous block, locked down before a rival gets there.

That is why the assessed value and the sale price split so far apart. They answer different questions. One asks what the land is worth as land. The other asks what it is worth as the last missing piece of a $15 billion build.

The claim worth pushing back on

The idea that a price this high is just free money is where we’d push back. Not because nobody profited, plainly some people did, but because it treats the gap as proof the buyers were foolish or the sellers simply blessed.

The mayor’s version of the lucky-landowner story is memorable. Ted Neitzke, the project’s most prominent supporter, told Wisconsin Watch that the sellers “woke up one day and they just happened to live in the right spot.”

Right spot, yes. But “happened to” undersells what was being bought. Wisconsin Watch notes that, nationally, data center developers are often willing to overpay for land near electric power, to beat rivals in what has become a land rush. The premium is not a mistake. It is the price of speed and certainty in a market where losing one parcel can strand an entire campus.

Adam Mauro, a valuation director at Altus Group, put this plainly in a study of 80 data center land deals. The high price for well-placed land, he wrote, “is compensation for immediacy and certainty, not an indicator of superior underlying real estate.” That is one firm’s view rather than settled fact, but it fits Port Washington closely. The buyers were not paying for better dirt. They were paying to not lose.

Why single parcels commanded outsized prices

That $10.2 million deal did not happen alone. Wisconsin Watch found developers spent at least $125 million assembling 1,500 or more acres around the project, buying from individual owners at many times the assessed value. Members of the Karrels family and their farming business earned at least $20 million across their deals.

When you have to stitch together that much neighboring ground, every last holdout gains power. As Scott Finfer, a Texas land developer writing for HousingWire, put it, “data centers typically require hundreds of contiguous acres to deploy capital at scale.” If your farm sits in the middle of the block a developer needs, its value is not what farmland trades for. Its value is what the whole project is worth without it, which is nothing.

Altus Group’s numbers show the same dynamic from the other side. Its analysis found a roughly 120-fold spread in per-acre prices depending on parcel size: a median near $3.3 million an acre for sites under 25 acres, versus about $28,000 an acre for tracts over 1,000 acres. Small, well-placed pieces cost far more per acre precisely because the buyer cannot walk away from them.

What the sale price doesn’t capture

The land is the cheap part. A campus this size runs on water and power, and those carry costs the purchase prices never show. Vantage says it is funding a minimum of $175 million in regional infrastructure: water and wastewater capacity, mains, sewer lines, a new water tower and power hookups. Against numbers like that, a $125 million land bill looks more like a down payment than the main event.

The residents’ side is more mixed than either the windfall story or the horror story allows. Ryan Nowak sold his 65-acre Lake Drive property for $1.75 million and now lives about 10 miles north. “On paper it looked OK,” he told Wisconsin Watch, “until you go to replace what you had.”

Curtiss Smith, a crane operator who sold a four-acre property assessed at $258,000 for $895,000, described the strange feeling afterward: “After the fact, you hear what everybody else got.” Neither man says he was cheated. They are describing what it feels like to put a price on something that had never been priced before.

Port Washington is not unusual, which is part of why the multiples look the way they do. Land purchases for future US data centers reached about $6 billion in the first half of 2026, up 79% from a year earlier, according to figures from Avison Young reported by CNBC. Data centers now make up 27% of US development sites, second only to apartment buildings. A local land rush and a national one are the same thing at different scales.

What a fair-market figure can and can’t tell you

An assessed value is a good measure of what land is worth for the use it already has, and a poor measure of what it is worth to a buyer who needs that exact acre right now. The 17x figure does not mean the land was secretly premium. It is the price of speed, of buying a continuous block, of being the one parcel a $15 billion project cannot route around.

The post A Wisconsin family sold 173 acres at Port Washington for 10.2 million dollars, ground with a fair market value of 590,000. Developers spent at least 125 million dollars buying more than 1,500 acres around the project, and a 672-acre data center is now going up about a mile inland from Lake Michigan. appeared first on Space Daily.

A single Bitcoin transaction carried an average water footprint of about 16,000 litres in 2021 once the electricity and cooling behind it were counted — roughly 6.2 million times the water behind one credit-card swipe, and the figure rises and falls with the price of Bitcoin itself

17 September 2026 at 03:00
Rows of cryptocurrency mining rigs and cables

In 2021, the average transaction recorded on the Bitcoin blockchain carried an estimated water footprint of roughly 16,000 litres, once the water used to generate the electricity behind the mining process and to cool the machines doing the work is added up. That figure, drawn from a peer-reviewed study published in the Cell Press journal Cell Reports Sustainability, works out to roughly 6.2 million times the water footprint of a single credit-card swipe, based on de Vries’ own estimate — discussed in a later interview with Greenpeace rather than the paper itself — that one card transaction carries a footprint of around 2.6 millilitres.

The research, titled “Bitcoin’s growing water footprint,” was published online in late November 2023 by Alex de Vries, a data scientist with a background in financial economics who tracks the industry’s resource use. De Vries built his estimate around two components. The larger of the two, accounting for roughly 80 to 90 percent of the total, is indirect water use: the water consumed at power plants to generate the electricity that miners buy, whether through evaporative cooling at thermoelectric plants, hydropower reservoir evaporation, or other generation methods. The paper calculates this by combining data on where Bitcoin’s computing power is located with regional water-intensity figures, expressed in litres of water per kilowatt-hour of electricity produced on that grid.

The remaining share, direct water use, covers cooling and humidification equipment on-site at mining facilities, measured using an industry metric called water usage effectiveness, or WUE. For large-scale US mining operations, the study estimated a weighted-average WUE of between 0.25 and 1.03 litres per kilowatt-hour, depending on climate and facility design. Location matters enormously to the total: the study estimated Kazakhstan accounted for 63 percent of Bitcoin’s 2021 water footprint while hosting only around 14 percent of its computing power. Average water intensity across Bitcoin’s power mix rose from 8.63 litres per kilowatt-hour in 2020 to 15.0 litres per kilowatt-hour in 2021, the paper found.

What the comparisons mean

News coverage of the study, including reporting by ScienceDaily and Fast Company, popularized the comparison that a single Bitcoin transaction’s water footprint is roughly equivalent to filling a backyard swimming pool. The 6.2-million-times-a-credit-card-swipe comparison, cited in de Vries’ own commentary and repeated across outlets covering the paper, follows from dividing the 16,000-plus-litre figure by that credit-card baseline, and it moves with Bitcoin’s price. When the market fell during the 2022 downturn, mining activity and its associated electricity and water use fell with it, only to climb back toward record levels as the price recovered in 2023. Because a higher Bitcoin price makes mining more profitable and draws more computing power onto the network, the water footprint tracks the price cycle instead of holding steady. De Vries projected the network’s total 2023 water footprint at roughly 2,237 gigaliters, an increase over 2021 despite the intervening price crash.

Extrapolated to the United States, which absorbed a large share of mining capacity after China’s ban, de Vries estimated domestic mining operations consume water at a scale comparable to roughly 300,000 US households, or a city on the order of Washington, DC, a comparison he discussed in an interview with Greenpeace.

Where the estimate is contested

The methodology has drawn pushback. Critics covered in a DL News investigation note that per-transaction water figures are largely independent of transaction count — a block can bundle thousands of individual payments, so dividing total resource use by the number of on-chain transactions can make the per-transaction number swing based on how the network happens to be used that day — a shift in usage patterns, not a genuine efficiency change.

Bitcoin advocate Daniel Batten has gone further, arguing in commentary covered by the same report that the swimming-pool framing overstates the case by counting indirect water use from power generation that would occur with or without Bitcoin mining, and that applying the same accounting method to other electricity-intensive industries — banking, AI, search engines, construction, or media — would produce similarly large-sounding numbers. Separately, a UN-affiliated water researcher, Kaveh Madani, flagged in the same report that “water footprint” and “water consumption” are technical terms with distinct meanings in hydrology, and that using them interchangeably in public communication risks overstating the case. The Register’s coverage of the dispute frames it as a live disagreement between the paper’s author and its critics — not a settled question.

Why it matters beyond the headline number

The debate sits inside a larger and less disputed trend: much of Bitcoin mining has moved into regions and grids with high water intensity, including coal-heavy and drought-prone areas, since China’s 2021 mining ban scattered the industry’s computing power across new jurisdictions. That shift, documented in mining-location data tracked separately by the University of Cambridge, means Bitcoin’s water footprint is now heavily influenced by decisions about where mining farms are sited and what power sources they draw on, in addition to how much Bitcoin is worth on any given day. For a network whose environmental accounting has focused almost entirely on carbon and electricity for over a decade, the 2023 paper marked one of the first attempts to put a number on the water side of the ledger as well.

The post A single Bitcoin transaction carried an average water footprint of about 16,000 litres in 2021 once the electricity and cooling behind it were counted — roughly 6.2 million times the water behind one credit-card swipe, and the figure rises and falls with the price of Bitcoin itself appeared first on Space Daily.

In 1949, researchers testing underwater acoustics off Bermuda lowered an early recording system into the water and kept the unexplained sounds it picked up. Seventy-seven years later they were identified as what may be the oldest preserved recording of a whale singing, made before scientists understood humpback whale song.

17 September 2026 at 00:00
A stunning underwater photograph of a humpback whale swimming gracefully in the deep blue ocean.

A man’s voice reads a date onto a plastic disc. “The date, 7 March, 1949,” he says, as reported by Smithsonian Magazine. Underneath the announcement there is something else: a low, looping sound with a shape to it, rising and falling. It came up through the water off Bermuda into an experimental rig the researchers had lowered over the side.

They did not know what it was. They kept it anyway.

What they had captured, as noted by Woods Hole Oceanographic Institution, was the song of a humpback whale and it sat in a drawer for the better part of a century before anyone could say so.

A sound nobody could place

The recording came out of ordinary work. In March 1949, researchers aboard WHOI’s research vessel, the R/V Atlantis, were off Bermuda testing sonar for the U.S. Office of Naval Research.

The gear was makeshift by later standards: an early underwater setup and a Gray Audograph, an office dictation machine that etched sound onto thin plastic discs. Into that they fed noises coming up from below that they could not explain.

WHOI’s announcement in February 2026 identified that March 7, 1949 disc as what may be the earliest preserved recording of a whale. The hedging in that sentence matters, and we’ll come back to it. The striking part, for now, is the gap. The people at the rail heard the sound as they made it. The people who understood it were born, in some cases, decades later.

Why it sat unheard for seventy-seven years

The disc survived partly by luck of material. Magnetic tape from that era tends to break down; plastic holds up better. As Ashley Jester, WHOI’s director of research data and library services, put it, “these audograph discs survived because of their material and careful preservation.”

The 1949 disc is one of more than 200 audograph discs in WHOI’s archives, only a handful of which have been listened to so far. Digitizing the collection was funded by a $10,000 award from the National Recording Preservation Foundation. It took someone deliberately going back through old plastic, disc by disc, for the unexplained sound of 1949 to become the humpback song of 2026.

Made before we knew what whale song was

What makes the timing land is what came after it. The idea that humpbacks sing structured, repeating songs is usually traced to the 1960s. Navy engineer Frank Watlington recorded humpbacks off Bermuda in 1964 and shared his tapes with Roger and Katharine Payne. That work led to the album “Songs of the Humpback Whale,” which put the idea into the public mind that these animals compose.

The 1949 disc predates all of that by fifteen years. The researchers who saved it had no framework to hear it with. To them it was noise worth keeping, not song worth studying, because the idea of humpback song as a thing to study did not yet exist.

That gap is also what gives the old recording its value now. Laela Sayigh, a marine bioacoustician at WHOI, framed the scarcity plainly: “Data from this time period simply don’t exist in most cases,” she said. Her point, as we read it, is not that no mid-century ocean audio survives anywhere, but that this window is close to blank, which is what makes a single clean disc worth so much.

Sayigh suggested the recording “can provide insight into how humpback whale sounds have changed over time, as well as serving as a baseline for measuring how human activity shapes the ocean soundscape.” 

Peter Tyack, an emeritus research scholar at WHOI, made the same point about what the disc lets you hear beyond the whale. The recordings, Tyack said, “not only allow us to follow whale sounds, but they also tell us what the ocean soundscape was like in the late 1940s,” adding, “That’s very difficult to reconstruct otherwise.”

Why “may be the oldest” is the careful phrasing

WHOI has been careful, and we think that care is worth keeping. “May be the earliest preserved recording of a whale” is not the same claim as “is the oldest whale recording.” Older discs could be sitting unlistened-to in the same collection, or in someone else’s. The institution is describing what it has found and verified, not making a claim about everything that ever existed. When a headline flattens that into a superlative, it drops the part of the sentence that’s actually accurate.

That caution reflects how thin the evidence is. For context, WHOI points to other archives, including the Ocean Alliance collection of more than 2,400 recordings of whale and ocean sound from the 1950s through the 1990s. Even so, the 1940s remain close to silent in the record. A hedge isn’t weakness in a claim like this. It’s the accurate shape of what’s known.

The case for keeping what you can’t explain

Nobody in 1949 filed that disc thinking they’d captured the oldest whale song on record. They filed it because it was data, and you keep data. The understanding arrived seventy-seven years late, delivered to people the original researchers never met.

Jester put it plainly. “These recordings remind us why we collect data, even when we don’t immediately know what it means,” she said, and framed it as a duty across time: “preserving data when it is created is an investment in the future of science.”

The post In 1949, researchers testing underwater acoustics off Bermuda lowered an early recording system into the water and kept the unexplained sounds it picked up. Seventy-seven years later they were identified as what may be the oldest preserved recording of a whale singing, made before scientists understood humpback whale song. appeared first on Space Daily.

Young fish are dropped from a small airplane over Utah’s mountain lakes, poured out of one tank divided into seven chambers so the fish fall the last stretch through open air. More than 300 lakes inaccessible by vehicle are stocked this way each year, a practice Utah has used since 1956.

16 September 2026 at 22:30
A small airplane soars above a tranquil mountain lake with misty waters and lush forests below.

You want to put fish into a high mountain lake, one with no road and no short trail to it. Fish need water to travel in, water is heavy, and no truck can get up there. So how do you do it?

Utah’s answer, worked out over decades, is to skip the ground entirely. The fish arrive by air, and for the final stretch they arrive through open air, falling out of an airplane into the lake below.

The method: a Cessna, seven chambers, and a low pass

The plane doing this work is a small single-engine aircraft, and its cargo hold is the clever part. The Utah Division of Wildlife Resources describes a plane that “can carry the pilot and a copilot, plus one fish tank that has seven chambers, allowing the aircraft to stock seven different lakes in one flight.” Seven chambers, seven lakes, one loop through the mountains before the plane comes back to reload.

The plane comes in low and slow over the lake, about 50 to 150 feet above the water, and releases the fish from one chamber so they tumble the last stretch down. Then on to the next lake, the next chamber. A single flight can carry over 10,000 fish before anyone needs to land and refill.

Why the fish survive a fall from a plane

This is the part that stops most people. A fall from a hundred feet or more, into water, sounds like the end of the fish. It mostly isn’t, and the reason comes down to size.

The fish being dropped are tiny. They are fingerlings, young fish only 1 to 3 inches long, and at that scale the physics works in their favor. The DWR’s own explanation is that “the young fish — called fingerlings — are so small (ranging from 1-3 inches long) that the air slows their drop. The slower fall allows the fish to survive.” A body that small weighs very little for its size, so air resistance slows it fast. Instead of dropping like a stone, the fish flutter down more the way a leaf does.

We are not fish biologists, and this is the agency’s account of its own program rather than an independent study, so it reads better as the DWR’s reasoning than as settled fact. The agency is clear about the size limit, though. If you tried this with bigger fish, the DWR says, “if the fish were larger, the survival rate would not be as high.” The whole method depends on keeping the fish small enough to fall gently.

How long this has gone on, and how far it reaches

Dropping fish from planes is not a recent experiment. Utah has done it since as early as 1956, and it wasn’t the first method anyone tried. Matt McKell, a biologist with the DWR’s Northern Region, has written about the earlier, more awkward approaches. In the early days, McKell has written, the fish were carried up in metal milk cans on horseback. A horse can only carry so much water so far up a mountain.

Aircraft solved the reach problem, and they stuck. McKell writes that “by the 1950s, small airplanes became the preferred method for stocking fish into backcountry lakes, which is actually still the case today.” Seventy years on, the plane handles the long-distance work, while backpacks, buckets, and four-wheelers still cover the lakes a person can walk or drive to.

The scale now is large. The DWR reports that “more than 300 lakes are aerially stocked in Utah each year. These lakes range in size from smaller than 5 acres up to 500 acres.” Independent reporting puts the figure at roughly 300 high-elevation lakes as well, so the number is not just an agency talking point.

Why bother stocking a barren lake at all

There is a fair question underneath all of this. Many of these high lakes hold no fish naturally. Steep outlets and long winters mean fish often can’t reach them or can’t breed once there, which is exactly why they require frequent stocking rather than a one-time drop. So why put fish in a place that can’t keep them going on its own?

The plain answer is recreation. These are backcountry fishing spots, and a lake with no fish is a long hike to nothing for an angler. Stocking keeps hundreds of remote lakes worth the walk.

What makes the whole operation possible circles back to the fingerlings. The airplane, the seven chambers, the low pass over the water, all of it works only because the fish are small enough that falling a hundred feet does them little harm. Grow them a few inches and the physics turns against you. The program depends, in the end, on dropping a creature light enough to be caught by the air on the way down.

The post Young fish are dropped from a small airplane over Utah’s mountain lakes, poured out of one tank divided into seven chambers so the fish fall the last stretch through open air. More than 300 lakes inaccessible by vehicle are stocked this way each year, a practice Utah has used since 1956. appeared first on Space Daily.

In 1869, a French entomologist trying to breed a hardier silkworm let a batch of moth larvae escape his Massachusetts yard. Twenty years later they had defoliated 360 square miles nearby, and the species can still strip a million acres in a single bad year.

16 September 2026 at 21:00
Macro shot of caterpillars on a lichen-covered tree branch in Rouyn-Noranda, Québec, Canada.

One amateur naturalist, working in a modest backyard outside Boston, kept a colony of caterpillars behind his house. A windstorm scattered some of them into the woods and a little over a century later, the descendants of those loose larvae had become one of the most expensive forest pests on the continent, able to chew bare more than a million acres of trees in a single bad year.

How does one careless moment on a residential lot in 1869 turn into that?

The short answer: it took twenty years to look like anything at all. That delay is what makes the story worth telling. So let us walk it forward from the yard.

Who Trouvelot was, and what he was trying to do

The man in the yard was Étienne Léopold Trouvelot, a French amateur naturalist and artist who had settled in Medford, Massachusetts. He was not trying to unleash anything. He was experimenting with silk production. Trouvelot wanted to breed a silk-spinning caterpillar more resistant to disease than the domesticated silkworm.

For that he turned to the European gypsy moth, a species the Entomological Society of America formally renamed the “spongy moth” in 2022.

As the education service EEK tells it, some of Trouvelot’s moths escaped in 1868–1869 and subsequently multiplied in a vacant lot next to his home in Medford, Massachusetts. Not a secret rogue experiment. A hobbyist’s version of a reasonable farming bet, gone wrong in the most ordinary way imaginable.

The escape

It is often said that eggs got loose. The record does not quite support that. Trouvelot had imported clumps of eggs, but what escaped were the caterpillars he was actively raising behind his house.

According to historical accounts, a windstorm damaged his nets and scattered the caterpillars. Smithsonian magazine’s account of the episode traces the whole invasion back to insects escaping from nets and cages in that backyard.

Two things about the insect made the accident far worse than it should have been. It had few natural predators in North America. And the female of this species cannot fly, which sounds as though it should have limited the spread. But the young caterpillars compensate by floating on threads of silk carried by the wind, giving the moth almost nothing eating it and a quiet, wind-driven way of moving across the landscape.

The twenty-year fuse

For roughly two decades, not much visibly happened. That is the part that trips up our intuition. We expect consequences to arrive on the same timescale as the mistake, and invasions rarely oblige. The population built generation after generation until it crossed a threshold.

The first recorded major outbreak came around 1889, about twenty years after the escape. Caterpillars stripped the leaves off fruit and shade trees across a 360-square-mile area around Medford. 

Massachusetts launched a campaign to wipe the moth out, and the methods of the day were blunt. Ken Gooch, forest health program director at the Massachusetts Department of Conservation and Recreation, described that early era to the Daily Hampshire Gazette: “They did an incredible amount of really, really toxic pesticide spraying.” 

The effort failed. The moth kept moving, spreading through the Northeast, the Mid-Atlantic and the Midwest over the following century. Reporting from Grist puts that historical march at roughly 13 miles per year for over a century, and the total damage between 1970 and 2013 at 81 million acres stripped of leaves.

Why it still matters

The caterpillars are not fussy eaters. The USDA notes they feed on more than 300 species of trees and shrubs, which is a large part of why the damage scales the way it does.

Losing leaves for one summer does not usually kill a mature tree. Repeated years do real harm. Brian Eshenaur, a plant pathologist with Cornell University’s Integrated Pest Management Program, explained the strain to Grist: “When trees are defoliated like this right at this time of year, they are using reserves that are in the trunk and in the roots to put out a second flush of growth.” A stripped tree burns through its stored energy to grow a new set of leaves. Drain those reserves year after year and the tree weakens.

The same reporting notes that after two straight years of feeding, up to 80 percent of the trees in a hardwood forest can die. That is a cited figure, not a guarantee, and how far it plays out depends on drought, tree species and how healthy the forest was to begin with.

The financial toll is large too. Missouri’s Department of Conservation puts the yearly cost of damage nationwide at an estimated $868 million.

Wiping the moth out is off the table now. The goal is containment, run through the federal Slow the Spread program. It pairs a network of traps with two other tools: chemical scents that disrupt mating, and treatment sprayed from aircraft. A natural ally also arrived on its own in 1989, when a fungus, Entomophaga maimaiga, was found attacking the caterpillars and has since helped knock back some outbreaks.

What stays with us is the shape of the timeline. Slow-fuse invasions teach the hardest lesson precisely because there is no alarm at the moment it matters. A colony scattered by a storm in 1869 sat almost invisibly in the woods for two decades before it announced itself across 360 square miles. More than 150 years later, a multi-state partnership is still spending money and effort to hold the line against it. The gap between the small careless moment and the long tail of its consequences is enormous, and nothing about the yard in 1869 would have let anyone see it coming.

The post In 1869, a French entomologist trying to breed a hardier silkworm let a batch of moth larvae escape his Massachusetts yard. Twenty years later they had defoliated 360 square miles nearby, and the species can still strip a million acres in a single bad year. appeared first on Space Daily.

A pond in Ethiopia’s Danakil Depression has a measured salinity of 433 grams per kilogram — roughly twelve times saltier than the open ocean and saltier than the Dead Sea — sitting inside one of the hottest, most hostile landscapes on the planet

16 September 2026 at 19:30
Bright green and yellow mineral pools in the Danakil Depression

Near the base of the Dallol hydrothermal field in Ethiopia’s Afar region sits a pond barely 60 meters long, its water tinted pale yellow by dissolved iron. Chemists who sampled it found a total dissolved solids concentration of 433 grams per kilogram — 43.3 percent by weight — making it, by current measurement, the record for saltiest lake documented anywhere on Earth. The pond is known locally as Gaet’ale, and the figure comes from a 2017 study by Pérez and Chebude of Addis Ababa University’s Department of Chemistry, published in the journal Aquatic Geochemistry.

For context, the world’s oceans average about 35 grams of dissolved salt per liter, according to NOAA ocean salinity data and the USGS salinity reference — putting Gaet’ale at roughly twelve times ocean salinity. That figure is also higher than the Dead Sea, whose salinity is commonly cited around 340 grams per liter in recent measurements, though older or differently calculated figures put it lower — Guinness’s own comparison table, for instance, lists it at 23.1 percent by weight.

Ordinary seawater’s salt is mostly sodium chloride, or ordinary table salt. Gaet’ale’s brine is instead built around calcium chloride and magnesium chloride, at concentrations of roughly 2.72 moles per kilogram and 1.43 moles per kilogram respectively, according to Pérez and Chebude’s analysis, with trace sodium, potassium, nitrate and iron(III) complexes responsible for the water’s yellow cast. The researchers noted the pond’s chemistry closely resembles that of Don Juan Pond in Antarctica’s Dry Valleys, another calcium-chloride-dominated hypersaline pool long studied as one of Earth’s most extreme aquatic environments, though Gaet’ale’s higher temperature allows it to hold even more dissolved salt before reaching saturation.

The pond itself is shallow and crescent-shaped, sitting at around 50 to 55 degrees Celsius, with no inflowing or outflowing stream. According to the Gaet’ale Pond entry, local accounts attribute the pond’s formation to a January 2005 earthquake that reactivated a dormant thermal spring. The broader depression sits more than 100 meters below sea level in places, part of a tectonically stretched landscape laced with active volcanoes, sulfur vents and salt flats left behind by an ancient sea that repeatedly flooded and evaporated over geological time. The nearby Dallol hydrothermal field, roughly four kilometers northwest of the pond, is famous for acid ponds in shades of green, orange and yellow, produced when magma-heated groundwater dissolves the buried salt and mineral layers and pushes the resulting brine back to the surface.

A natural laboratory for other worlds

The combination of heat, acidity and salinity has made the region a working laboratory for scientists who study the outer edges of habitability. A multinational research effort coordinated through the Europlanet research infrastructure has sent microbiologists, geologists and planetary scientists to the depression in recent years. Karen Olsson-Francis and Vincent Rennie of the Open University sampled acidic, saline channels there for signs of microbial survival; Hugo Moors and Mieke De Craen of Belgium’s SCK CEN nuclear research center used the site to test methods relevant to how microbes might behave around deep nuclear waste repositories; and planetary geologists Daniel Mège of the Polish Academy of Sciences and Ernst Hauber of the German Aerospace Center studied Danakil’s salt-and-magma hydrothermal structures as an analog for Martian rift systems, work feeding into ongoing observations from the ExoMars Trace Gas Orbiter.

Jani Radebaugh of Brigham Young University and Ralph Lorenz of Johns Hopkins University’s Applied Physics Laboratory have separately used terrain models from the depression to interpret surface roughness data relevant to Saturn’s moon Titan.

Where even extremophiles give up

The scientific interest in the region’s brine pools goes beyond geology. A 2019 study led by Purificación López-García of the French National Centre for Scientific Research (CNRS), working with researchers from Spain’s Geological and Mining Institute and the Autonomous University of Madrid, searched the most extreme pools in the Dallol field — hyperacidic, near-boiling and saturated with salt simultaneously — for any trace of microbial life. Using genetic sequencing, culturing attempts, flow cytometry and electron microscopy, the team reported finding none, a result summarized by Phys.org as evidence that liquid water alone does not guarantee habitability. The researchers concluded that the pools’ combination of high magnesium and calcium concentrations, extreme acidity and heat produces a “chaotropic” chemical environment that actively breaks down biological molecules instead of simply placing them under stress.

That finding matters for astrobiology because it complicates a common assumption: that any environment with liquid water, however extreme, should host at least some microbial life. A separate 2021 study of nearby, slightly less extreme hypersaline lakes in the Danakil Depression, published in Environmental Microbiology by researchers including members of the same French-Spanish collaboration, found the opposite — diverse communities of salt-loving archaea thriving right up to the edge of what those less punishing pools could support. Gaet’ale itself is hot and dominated by chaotropic calcium and magnesium salts, not the sodium chloride of ordinary seawater. Pérez and Chebude’s 2017 paper focused on the pond’s chemistry rather than a dedicated search for microbial life, but a separate 2021 metagenomic study of Gaet’ale specifically found it dominated by bacteria — unlike the sterile conditions found in Dallol’s most extreme pools.

Together, the pond’s chemistry and its surrounding hydrothermal field illustrate why the Danakil Depression continues to draw researchers from chemistry, microbiology and planetary science alike. A 60-meter pool of scalding, mineral-saturated brine is, on its own, a curiosity of extreme terrestrial chemistry. Set inside a landscape already used to model early Earth, present-day Mars and the hydrocarbon lakes of Titan, it becomes a reference point for a broader question: how much stress a chemical system can absorb before it stops being able to host life at all.

The post A pond in Ethiopia’s Danakil Depression has a measured salinity of 433 grams per kilogram — roughly twelve times saltier than the open ocean and saltier than the Dead Sea — sitting inside one of the hottest, most hostile landscapes on the planet appeared first on Space Daily.

In 2018, a gas pipeline company took an easement across a Virginia family’s 560-acre property on Bent Mountain. After years of fighting over compensation, the family won a $523,000 jury award—but the company kept its right to use the land.

16 September 2026 at 17:30
A caution sign for gas pipeline amidst a field of blooming lavender with cloudy skies.

When a pipeline company condemns a strip of your land and the pipeline is already going in, what are you actually fighting for? Not the land.

By the time the Terry family walked into federal court in Roanoke, that had been decided somewhere else, and it was never going to be reopened in front of a jury. All that was left on the table was money.

That distinction is the whole story of what happened to a 560-acre tract on Bent Mountain, in Roanoke County, Virginia, land the family had held for seven generations. It helps explain how a four-day trial ended with a $523,327 verdict, and why that number then moved twice before it stuck.

We’re not lawyers, and this article is for general information only—not legal advice. It summarises a particular dispute; eminent-domain rules and compensation depend on the jurisdiction and the facts of each case. If a pipeline or other project affects your property, consult a qualified lawyer in your jurisdiction.

What actually gets taken, and why the pipeline stays

An easement is not the same as buying land outright. Mountain Valley Pipeline took permanent and temporary easements totaling about 8.37 acres across the 560-acre tract, plus a wide strip to lay and maintain the line. The family still owns the ground. What they lost was the right to control that corridor, and, in the family’s telling, some of the value of everything around it.

The power to do this comes from the Natural Gas Act, which lets an approved interstate pipeline use federal eminent domain. An explainer from the University of Maryland’s Agriculture Law Education Initiative lays out the two things a landowner can contest: whether the taking is really for a public use, and how much they are owed. The Terrys had lost the first fight before this trial began. The pipeline already had its public-use certificate, so the corridor was staying no matter what a jury decided. Only the second question, the amount, was live.

That is the constitutional floor the whole dispute sits on. The Fifth Amendment protection against taking private property without just compensation, the Supreme Court held in Armstrong v. United States, “was designed to bar the Government from forcing some people alone to bear public burdens which, in all fairness and justice, should be borne by the public as a whole.” The land goes to a public purpose. The public, through the taker, pays what it’s worth. Deciding that last figure was the entire job of the court.

Why it came down to two appraisers

When the only question is money, an eminent domain trial tends to collapse into a contest between valuation experts. In this case, these were not slightly apart. They were looking at the same land and describing two different properties.

The family’s appraiser valued the whole tract at $1.9 million, resting that figure in part on the land’s potential use as a commercial wind farm. From there the family asked the jury for $570,000, roughly a 30% loss in value.

Mountain Valley’s appraiser, Joseph Thompson, put the property at about $1.2 million before the taking and figured the damage at a much smaller reduction. At trial, the company’s attorneys argued the Terrys were owed about $153,000.

Back in 2018, Mountain Valley’s original offer for the roughly eight-acre easement was about $119,000. The family refused, the company condemned the corridor and began cutting trees, and four years later a jury was asked to sort out the gap between the company’s figure and the family’s.

How a jury lands on $523,000

The verdict, $523,327, sat much closer to the family’s number than the company’s. Juries in these cases don’t have to pick one appraiser’s total and adopt it whole. They weigh what they find believable from each side and can settle on a figure neither party explicitly proposed. That flexibility is exactly what turned into the next fight.

After the verdict came in, the judge decided the jury had gone too far. U.S. District Judge Elizabeth Dillon set the $523,327 aside, finding it ran against the clear weight of the evidence. In her 2023 opinion, she concluded the award was more than twice the highest loss in value anyone had presented, and she entered a reduced judgment of $261,033 instead.

Why the final figure moved twice

The number the jury spoke was not, for a while, the number that counted. The family appealed, and in May 2024 the U.S. Court of Appeals for the Fourth Circuit reversed the district court and ordered the full $523,327 verdict reinstated. The panel held the award fell within the range of testimony the jury was allowed to believe, and that the property’s residential values alone could support it.

Three numbers, then, for one strip of ground: the pipeline comapany’s $153,000, the judge’s $261,033, and the jury’s  $523,327. The verdict survived, but only after a second round of litigation over whether the jurors had been allowed to reach it.

What strikes us, reading the case from start to finish, is how narrow the argument always was. Four days of trial, dueling appraisers, a $1.9 million valuation against a $1.2 million one, a wind farm that will never be built, and two more years of appeals, all of it about one thing: the size of a check.

The corridor was cut, the trees were down, and the pipeline was going where the pipeline was going. The only thing anyone could still win was a number, and the number was never going to buy the land back.

The post In 2018, a gas pipeline company took an easement across a Virginia family’s 560-acre property on Bent Mountain. After years of fighting over compensation, the family won a $523,000 jury award—but the company kept its right to use the land. appeared first on Space Daily.

Dengue cases have fallen by about 70 percent in the parts of Singapore where the government releases mosquitoes on purpose. It breeds 5 million males a week, none of which bite, and the females they mate with lay eggs that never hatch.

16 September 2026 at 15:35
Mosquito feeding on human skin

If you told most people that a country’s public health strategy involved deliberately breeding and releasing millions of mosquitoes a week, they would assume something had gone terribly wrong. Mosquitoes are the enemy. You spray them, you drain their breeding sites, you cover yourself in repellent. You do not, under any circumstances, run a facility that produces them by the millions and sends employees out on scheduled morning shifts to let them loose in residential neighbourhoods.

But that is exactly what the Singapore government has been doing since 2016, and the results are now peer-reviewed, published in the New England Journal of Medicine, and genuinely stunning. Once you understand the trick, this becomes one of the most elegant pieces of public health engineering you will ever come across.

The mosquitoes on purpose

Singapore’s National Environment Agency runs the whole thing under the name Project Wolbachia. At its production facility, technicians breed Aedes aegypti mosquitoes at industrial scale. These are the same mosquitoes that transmit dengue, Zika, and chikungunya. The ones being bred here, however, have been infected with a bacterium called Wolbachia pipientis, specifically the wAlbB strain, which occurs naturally in many insect species but is not typically found in Aedes aegypti.

Once the mosquitoes reach the pupal stage, the facility sorts them by sex. Only males get released, twice a week on weekday mornings, into the residential neighbourhoods where the programme is running. Here is the key point that catches everyone off guard: male mosquitoes do not bite. Only females do. Males feed on nectar. So releasing them by the million into your neighbourhood adds precisely zero to the local biting-mosquito problem.

If you like the idea of a country quietly engineering its own wildlife, this one goes further. Singapore spent sixty years turning itself into the greenest city on earth — and then had to deal with what actually moved in. Worth a watch:

What happens when they mate

The Wolbachia trick works through something called cytoplasmic incompatibility. When a male carrying Wolbachia mates with a wild female that does not carry the bacterium, her eggs get fertilised, they look normal, she lays them, and then nothing hatches. The bacterium disrupts the very first cell division in the developing embryo. Every egg is a dead end.

You can see where this is heading. Do this twice a week for months on end across an entire neighbourhood, with millions of released males competing for every wild female’s attention, and the wild mosquito population starts collapsing. The females run out of viable mates. The next generation shrinks. Eventually you are looking at a neighbourhood where the mosquitoes that could give you dengue have effectively been erased from the local landscape.

The numbers, which are extraordinary

The peer-reviewed results were published in the New England Journal of Medicine in February 2026, and they held up under the most demanding trial design available. Fifteen residential clusters across Singapore, holding a combined 724,428 people. Eight got the Wolbachia releases. Seven got nothing. The researchers tracked every dengue test result from those 15 clusters for two years, from mid-2022 to late 2024.

In the treated clusters, adult female Aedes aegypti populations dropped by roughly 78 per cent, from a baseline abundance index of 0.18 down to 0.041. In the untreated control clusters, the population actually rose over the same period, from 0.19 up to 0.277. And the dengue outcomes matched: residents in the release areas were 71 to 72 per cent less likely to contract dengue than residents in the untreated areas. The effect held across every age group, both sexes, and every year of the trial.

Where it is going next

You might reasonably wonder how much of Singapore is covered. According to the NEA’s latest update in March 2026, Project Wolbachia is protecting about 35 per cent of Singapore households, on track to hit 50 per cent by the end of 2026, with new release sites launching this year in Bukit Panjang, Little India, Pioneer, Toa Payoh, and Ang Mo Kio. Total household coverage will exceed 800,000 homes.

The programme is not officially a silver bullet. Singapore’s environment minister has been careful to emphasise that Wolbachia releases complement rather than replace the traditional approach of source reduction, insecticide spraying, and public education. But the picture is shifting fast. What started as a small phase 1 trial in 2016 is now a nationwide vector control programme that other tropical cities are studying carefully.

What this actually is

Look, I know this sounds like science fiction. A city that fights mosquitoes by breeding more mosquitoes. Eggs that never hatch because a bacterium interferes with cell division. Millions of male insects released weekly into apartment blocks where no one notices because males never bite. Every piece of it is real, all of it has been through the highest tier of peer review, and it is working better than any dengue intervention that came before it.

The reason it works is that the technique does not try to poison the mosquitoes, trap them, or block them from breeding. It just gives the wild females a whole lot of male suitors whose reproductive contribution is zero. The wild population outcompetes itself. That is judo. And Singapore, of all places, turned out to be exactly the right setting to prove it works.

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