Scientists have discovered that the weather on a distant world may be far more organized than it first appears. The object, known as SIMP 0136, is a brown dwarf located about 20 light-years from Earth. It is larger and hotter than a gas giant planet such as Jupiter, but it is not massive enough to […]

The post Scientists Discover Jupiter-Like Weather Just 20 Light-Years Away appeared first on Knowridge Science Report.

If you ask most satellite companies aside from SpaceX, they will tell you the world doesn't have enough capacity for launching payloads into orbit. This is despite the blistering launch cadence we've seen around the world in recent years, led by SpaceX's Falcon 9 rocket.

Customers in any sector will, of course, usually welcome competition. Theoretically, competition will lead to lower prices and allow the best to rise to the top. It seems like the customers buying launch services were right. SpaceX is dialing back its Falcon 9 launch program, and there is no certainty about when SpaceX's reusable next-generation super-heavy-lift rocket, Starship, will carry anything to orbit besides the company's own Starlink satellites.

So it's no surprise satellite operators are cheering the success of a new launch provider. This was especially the case a few days ago, when Germany's Isar Aerospace reached orbit for the first time with its Spectrum rocket. The launcher delivered a batch of CubeSats to low-Earth orbit from a spaceport in northern Norway, and Isar tasted success after its first test flight ended in failure last year.

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If you ask most satellite companies aside from SpaceX, they will tell you the world doesn't have enough capacity for launching payloads into orbit. This is despite the blistering launch cadence we've seen around the world in recent years, led by SpaceX's Falcon 9 rocket.

Customers in any sector will, of course, usually welcome competition. Theoretically, competition will lead to lower prices and allow the best to rise to the top. It seems like the customers buying launch services were right. SpaceX is dialing back its Falcon 9 launch program, and there is no certainty about when SpaceX's reusable next-generation super-heavy-lift rocket, Starship, will carry anything to orbit besides the company's own Starlink satellites.

So it's no surprise satellite operators are cheering the success of a new launch provider. This was especially the case a few days ago, when Germany's Isar Aerospace reached orbit for the first time with its Spectrum rocket. The launcher delivered a batch of CubeSats to low-Earth orbit from a spaceport in northern Norway, and Isar tasted success after its first test flight ended in failure last year.

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© Isar Aerospace

Defense aviation company Hermeus has announced the development of Ramjet-X, its next-generation ramjet propulsion test vehicle capable of carrying test payloads to high Mach speeds.

The company said Ramjet-X, designed to launch mid-flight from a carrier aircraft, offers the key advantages of competitive high-Mach test platforms while keeping costs low enough for a wider range of mission profiles.

Pre-flight testing of Ramjet-X is already underway, with its first official prototype test flights expected in 2027.

Ramjet-X Will Launch Mid-Flight from Quarterhorse

Most conventional jet engines can’t achieve supersonic speeds without dumping raw fuel into an afterburner and literally rocketing past the sound barrier. To travel at high Mach speeds without relying on rocket-style propulsion, engineers have turned to ramjet engines.

While ramjets are effective, they rely on the high-speed influx of air to operate. This limitation means aircraft equipped with this type of propulsion must be propelled to higher speeds by another craft or booster rocket before they can engage.

In an email to The Debrief, a Hermeus spokesperson explained that current options often rely on “large and expensive” boosters that are discarded after each test. Conversely, Ramjet-X relies on the company’s reusable aircraft to reach launch velocity.

“Ramjet-X is designed to be carried by Quarterhorse, which provides the speed and altitude required for deployment,” the company told The Debrief.

The company could not disclose what speed Quarterhorse must achieve before it can launch Ramjet-X. However, the spokesperson did note that the launch craft is designed to return to home base for future missions.

When asked about Ramjet-X’s specific operating velocity once it disengages from Quarterhorse and engages its ramjet propulsion system, the company could only say the vehicle will operate at “High-Mach speeds.”

Conventional ramjets use a combination of high-velocity air and fuel to achieve extreme velocities. Hermeus said they cannot disclose specifics about Rocket-X’s fuel requirements.

Mission Profiles and Repeatable Architecture

Because of the sensitive nature of potential future missions, Hermeus was cautious about sharing specifics of any planned missions. The company also couldn’t provide technical details on what a typical mission profile might look like.

However, a Hermeus spokesperson told The Debrief, the vehicle’s architecture “allows customers and partners to integrate payloads, sensors, communications and computer systems, autonomy, material samples, propulsion technologies, and other experimental hardware and software onto Ramjet-X for testing in representative sustained high-Mach conditions.”

Hermeus also highlighted the potential cost savings of a “repeatable platform, launch architecture, and flight-test infrastructure,” designed to dramatically lower costs without sacrificing versatility or reliability.

“Instead of relying on a large dedicated expendable booster to accelerate the test vehicle into its ramjet operating regime, the launch aircraft provides much of that energy and then returns to fly again,” the company told The Debrief. “This architecture allows Hermeus to fly more by reducing the cost of expendable launch hardware.”

“High-speed flight testing is extremely expensive, and you don’t get many shots at it,” Hermeus CEO Zach Shore explained.

“Another Order of Magnitude Reduction”

Hermeus said specific unit costs are not currently available. However, they said a projected cost per minute of high-Mach test time “is in the low $100k’s per minute.” For comparison, the company highlighted the historic and current costs of high-Mach flight testing.

“Most of the below comparisons are rocket-based but will give you an idea how costly high-Mach tests are and why Ramjet-X will fundamentally change the equation,” Hermeus told The Debrief.

Older examples include NASA’s X-43, which achieved around 21 seconds of high-Mach flight, and the Air Force’s X-51, which achieved around 350 seconds. Hermeus said both multi-year efforts cost around $450 million each in today’s dollars.

Current options include rocket-powered test flights aboard Rocket Lab’s HASTE, which Hermeus said run $10-20 million each, “not including the expendable cruise or glide vehicles.” The company also pointed to Stratolaunch Talon-A missions.

“Even though fully reusable, (they) are $10-12m per flight for a few min of on-condition time,” the company told The Debrief.

Conversely, Hermeus said its current projections of less than a million per minute offer potential customers “another order of magnitude reduction in the problem that matters most.”

“Ramjet-X is being designed around simplified manufacturing, rapid production, and expendability in meaningful quantities rather than the traditional model of building a small number of highly bespoke high-speed test articles as was done in other high-speed airbreathing flight test programs like X-43 and X-51,” the company told The Debrief. 

Development of Ramjet-X is already well underway

When detailing the newly announced Ramjet-X’s benefits, Shore noted that their system gives them a way to place new systems into sustained high-Mach environments “without building an expensive one-off test program every time.”

“Bringing speed, sustained flight, and scalability all into one system lowers the barriers to gathering extremely valuable data from these conditions and accelerates programs for both us and our customers,” the Hermeus CEO explained.

When announcing Ramjet-X, Hermeus said the vehicle’s ramjet engine is already undergoing extensive testing at its Florida-based HEAT facility. Future tests will occur at the company’s California headquarters, with the first flight tests planned for 2027. 

Christopher Plain has spent the last six years as Associate News Editor and Head Science Reporter at The Debrief. Follow and connect with him on X, learn about his novels at plainfiction.com, or email him at christopher@thedebrief.org.

The Apollo 11 mission cost NASA more than twenty billion dollars in 1969 money, or somewhere north of one hundred and fifty billion dollars in modern terms. It was one of the most expensive single scientific undertakings in human history, involving roughly four hundred thousand people across NASA and its contractor network. Everything about it was unprecedented. The Saturn V rocket had never been flown with a crew on a full lunar trajectory before. The Lunar Module had never been landed on a celestial body. The re-entry profile at the return end of the trip had never been survived. Buzz Aldrin flew on the mission as the second of three crew members and walked on the lunar surface on 20 July 1969. He returned home four days later. And when he got back to Houston he filed a routine federal government travel expense claim like any other public employee returning from a work trip. It was for thirty-three dollars and thirty-one cents.

What the voucher actually itemises

Aldrin posted a photograph of the original voucher on Twitter on 30 July 2015 to mark the forty-sixth anniversary of the moon landing. According to CBS News reporting the following day by science journalist Amanda Schupak, the voucher covers the period from 7 July 1969 through to 27 July 1969, which is a week and a half before the launch through to three days after the splashdown. What follows is probably the strangest business trip itinerary in the history of American federal expense accounting. The listed points of travel are Houston, Texas to Cape Kennedy, Florida on 7 July, then Cape Kennedy to Moon on 16 July, then Moon to Pacific Ocean on 24 July, then Pacific Ocean to Hawaii the same day, and finally Hawaii back to Houston on 27 July. The mode of transport listed for each leg is equally striking. Government Air for the two flights inside the continental United States. Government Spacecraft for the leg between Cape Kennedy and the Moon. USS Hornet, which is the aircraft carrier that recovered the crew, for the leg between the Pacific Ocean and Hawaii. And a US Air Force plane for the return to Houston.

The life of an astronaut is truly fascinating – check out the video we made on what every astronaut sees in the mirror:

The federal expense reimbursement system in 1969 did not distinguish between astronauts and any other government employee. If you were travelling on official business you filled out the same form, listed the same route, claimed the same mileage rate for personal vehicle use, and provided the same receipts for any out-of-pocket costs. Aldrin’s voucher was processed by a routine NASA finance office alongside vouchers from technicians attending conferences and administrators travelling to Washington. Nobody appears to have thought the situation odd enough to route it through any special channel. The reimbursement was paid in the normal course of business a few weeks later.

Why the amount was so small

The reason the total came to only thirty-three dollars and thirty-one cents rather than something more substantial is spelled out on the voucher itself. According to BBC Science Focus Magazine’s August 2015 write-up by Rachel Baxter, the document states in plain text that government meals and quarters were furnished for all the dates in question. That covered his food and lodging at the pre-launch quarantine facility at Cape Kennedy, aboard the Saturn V and the Apollo capsule, on the lunar surface itself, aboard the USS Hornet during the post-splashdown recovery, and inside the mobile quarantine facility where he and Neil Armstrong and Michael Collins were confined for twenty-one days after their return in case they had brought back any unknown lunar pathogens. The federal government had covered every one of those things directly, so Aldrin had nothing to claim against any of them.

What the thirty-three dollars and thirty-one cents actually covered was almost certainly the mileage rate for driving his own personal vehicle from his home in Houston to Ellington Air Force Base and back at each end of the trip. Government employees in 1969 were entitled to claim a per-mile rate when using their own car for official business. Aldrin did what everybody at NASA did. He drove to the airfield, got on the government plane, and came home the same way at the end. He submitted his mileage on the standard form. He got his check for thirty-three dollars and thirty-one cents in the mail a few weeks later.

The voucher was not the only piece of Apollo 11 bureaucratic paperwork Aldrin dug out and shared publicly in 2015. He also posted the US Customs declaration that he and Armstrong and Collins had signed on landing in Honolulu after the recovery. The declaration listed their country of departure as Moon and their flight number as Apollo 11. The cargo section listed moon rock and moon dust samples. The question about whether any crew member had been in contact with an infectious disease during the trip was answered by Aldrin in the space provided as “moon disease TBD.” A Honolulu customs inspector had counter-signed the form and accepted it as filed. The crew had cleared customs.

What the whole set of documents represents is one of the more revealing curiosities of the entire Apollo programme. NASA had achieved something in July 1969 that no human institution had ever previously come close to achieving, and the federal bureaucracy processing the paperwork for the people who had done it treated them exactly like every other federal employee returning from a work trip. That was partly because the routine forms were the only ones available. But it was also because the people at NASA didn’t consider themselves exempt from the ordinary paperwork obligations of federal employment. Aldrin filled out his expense form. He submitted his customs declaration. He collected his thirty-three dollars and thirty-one cents. And forty-six years later he still had the voucher in a drawer.

The post The second man to walk on the Moon later dug out his old expense claim from the trip, and it turns out Buzz Aldrin was reimbursed the grand sum of 33 dollars and 31 cents, not for the rocket or the spacecraft, but for the ordinary travel expenses of getting himself to and from the launch site like any other business trip. appeared first on Space Daily.

A telescope with no moving parts, stationed in the mountains of British Columbia, has produced the largest single accounting of fast radio bursts ever assembled. The Canadian Hydrogen Intensity Mapping Experiment (CHIME) and its FRB collaboration have released a second catalog logging 4,539 fast radio bursts from 3,641 distinct sources, drawn from more than five years of continuous sky-watching between July 25, 2018, and September 15, 2023.

The result, posted to arXiv in January 2026 and published in The Astrophysical Journal Supplement Series, supersedes the collaboration’s first catalog, which covered a single year of observations ending in mid-2019 and recorded 536 bursts. The new release spans roughly five times the observing period and delivers more than eight times as many detected events, cementing CHIME’s role as the dominant instrument for cataloging these millisecond-long flashes of radio energy.

A telescope that cannot look anywhere else

CHIME’s design is unusual for an instrument that has become the world’s leading fast radio burst detector. Located at the Dominion Radio Astrophysical Observatory near Penticton, British Columbia, it consists of four stationary half-pipe reflectors, each 100 meters long and 20 meters wide, laid side by side and oriented north-south. ICHIME has no moving parts at all — unlike dishes that swivel to track a target. Each cylinder’s focal line is strung with 256 dual-polarization antennas, for 1,024 across the array, feeding a digital signal-processing system that forms 1,024 beams electronically rather than through any physical steering.

That fixed geometry means CHIME cannot be aimed at a particular patch of sky the way a conventional radio dish can. Instead, it watches a roughly 200-square-degree strip of sky directly overhead and lets Earth’s rotation carry the rest of the northern sky through its field of view over the course of a day. The technique, known as transit observing, trades the ability to target specific objects on demand for near-continuous coverage of a wide swath of sky, night and day — precisely the kind of monitoring that catching rare, unpredictable millisecond bursts requires.

What changed since the first catalog

The collaboration’s first catalog, released in 2021, logged just over 500 bursts from a single year of data. That release established CHIME as a serious FRB survey instrument and provided the first large, uniformly selected sample for statistical study. The new catalog is a different scale of effort entirely: it folds in more than four additional years of observing time, past the original one-year window, and pushes the source count past 3,600 — a population increase that lets researchers move from spotting a phenomenon to characterizing it as a class.

Fast radio bursts are intense pulses of radio waves lasting typically a few milliseconds, first identified in archival data in 2007 and confirmed as an astrophysical population in the years since. Most detected bursts appear to flash once and never repeat from the same location, but a minority repeat, sometimes many times, from sources that can be pinpointed to host galaxies. Among the 4,539 bursts in the new catalog, 981 come from 83 known repeating sources, while the remainder appear as one-off events, at least within the observing window. That repeater fraction, drawn from a sample nearly nine times larger than before, gives researchers a substantially firmer basis for comparing the properties of repeating and apparently non-repeating bursts, including their durations, frequency structure, and the dispersion imposed on the signal as it crosses intervening plasma on its way to Earth.

Why the larger sample matters

The physical origin of fast radio bursts remains only partly settled. Magnetars — neutron stars with extraordinarily strong magnetic fields — are the leading candidate source for at least some bursts, following the 2020 detection of a burst from a magnetar inside the Milky Way. But the diversity of burst durations, brightness, and repetition behavior recorded across thousands of events suggests more than one physical mechanism, or more than one class of source, may be responsible. Larger, more uniform catalogs let researchers test that diversity statistically rather than relying on a handful of well-studied individual sources.

Because each burst’s radio signal is dispersed — delayed by different amounts at different frequencies as it passes through free electrons in space — the catalog also functions as a probe of matter distributed between galaxies. That diffuse, low-density gas is difficult to detect by any other means, and a sample of thousands of bursts at known or estimated distances allows astronomers to map its distribution across large volumes of the universe, an application sometimes described as using fast radio bursts to weigh the cosmos.

The catalog paper reports each burst’s arrival time, dispersion measure, scattering timescale, and flux density, along with a dynamic spectrum across the 400–800 megahertz band CHIME observes, at just under a millisecond time resolution. That level of detail, applied uniformly across thousands of bursts rather than compiled from disparate instruments and detection methods, is what distinguishes a catalog release from a series of individual discovery announcements.

What comes next

CHIME/FRB’s outrigger stations — companion antenna arrays built at separate sites across North America — extend the core telescope’s ability to localize individual bursts to their host galaxies with far greater precision than CHIME alone can achieve, a capability that has already been applied to a subset of local-universe bursts drawn from the same multi-year dataset. As those outriggers accumulate their own detections alongside the main array, the size and precision of future catalogs are expected to grow further, sharpening the statistical picture the second catalog has already begun to draw.

The post Four fixed half-pipe reflectors in British Columbia, each 100 meters long and strung with 1,024 antennas, watched the same overhead strip of sky from July 25, 2018 to September 15, 2023 and logged 4,539 fast radio bursts from 3,641 separate sources, on a telescope that cannot be aimed. appeared first on Space Daily.

Some of the smallest objects ever detected in the outer solar system appear to have preserved evidence of how and where they formed billions of years ago. For the first time, astronomers combined observations from NASA’s Hubble Space Telescope and James Webb Space Telescope to study extremely faint objects beyond Neptune. Known as trans-Neptunian objects, […]

The post Tiny Worlds Beyond Neptune Preserve Memories of the Early Solar System appeared first on Knowridge Science Report.

Isar Aerospace, founded in 2018 by three students at a German university, successfully launched a privately developed rocket into low-Earth orbit Saturday from a Norwegian spaceport inside the Arctic Circle.

The two-stage rocket, named Spectrum, became the first fully commercial launch vehicle in Europe to reach orbit. With Saturday's success, Isar is the clear leader among a pack of several European launch startups vying to inject some competition into Europe's stagnant launch market.

Isar's 92-foot-tall (28-meter) Spectrum rocket lifted off at 4:12 pm EST (20:12 UTC) Saturday from Andøya Spaceport in northern Norway, where it was 10:12 pm local time and the final bluish hues of daylight faded from the late summer sky. Seven minutes later, the rocket was in orbit.

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Isar Aerospace, founded in 2018 by three students at a German university, successfully launched a privately developed rocket into low-Earth orbit Saturday from a Norwegian spaceport inside the Arctic Circle.

The two-stage rocket, named Spectrum, became the first fully commercial launch vehicle in Europe to reach orbit. With Saturday's success, Isar is the clear leader among a pack of several European launch startups vying to inject some competition into Europe's stagnant launch market.

Isar's 92-foot-tall (28-meter) Spectrum rocket lifted off at 4:12 pm EST (20:12 UTC) Saturday from Andøya Spaceport in northern Norway, where it was 10:12 pm local time and the final bluish hues of daylight faded from the late summer sky. Seven minutes later, the rocket was in orbit.

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© Isar Aerospace

Isar Aerospace, founded in 2018 by three students at a German university, successfully launched a privately developed rocket into low-Earth orbit Saturday from a Norwegian spaceport inside the Arctic Circle.

The two-stage rocket, named Spectrum, became the first fully commercial launch vehicle in Europe to reach orbit. With Saturday's success, Isar is the clear leader among a pack of several European launch startups vying to inject some competition into Europe's stagnant launch market.

Isar's 92-foot-tall (28-meter) Spectrum rocket lifted off at 4:12 pm EST (20:12 UTC) Saturday from Andøya Spaceport in northern Norway, where it was 10:12 pm local time and the final bluish hues of daylight faded from the late summer sky. Seven minutes later, the rocket was in orbit.

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A spacecraft propelled by a subluminal warp drive would cause an extremely bright glow if it passed through Earth’s atmosphere, according to findings detailed in a new study.

Physicist Shaun Fell from the international think tank Applied Physics (AP) and Harvard astrophysicist Avi Loeb detail their findings in a new paper, which also suggests that extremely small “warp bubbles” could be used as weapons, and that Einstein’s theory of general relativity permits warp bubbles with micrometer-sized surfaces housing very large craft, similar to technologies that appear in science fiction.

The authors emphasize that their new study, which appeared on the preprint server arXiv and has not yet been peer-reviewed, does not prove the existence of aliens, extraterrestrial technology, or warp drives. However, they suggested their analysis offers a viable scientific foundation for many UAP reports of bright lights and “orbs” discussed in recent Pentagon file drops, and is supported by a mathematically valid means of interstellar travel that interplanetary visitors—if they exist—might use to reach Earth.

“Warp drives are a fantastic way to travel through the universe, and it makes sense to my human brain that aliens would find them advantageous too,” Dr. Fell told The Debrief.

Warp Drives: From Science Fiction to Science Fact?

Science fiction authors have proposed ways to travel faster than the speed of light for decades. In the 1960’s, science fiction TV trendsetter Star Trek brought the concept to the wider public with the U.S.S. Enterprise’s infamous Warp Drive. Although a convenient storytelling tool for propelling the show’s heroes across the cosmos at human time scales, the scientific viability of warp drive travel didn’t exist when creator Gene Roddenberry’s vision first premiered.

In 1994, Mexican mathematician Miguel Alcubierre moved the discussion from science fiction to science fact when he proposed the first mathematically viable warp drive metric. Since then, several other scientists have weighed in, including noted NASA warp drive pioneer Harold G. Sonny White. Still, even the most elegant mathematical solutions for traveling faster than the speed of light have hit roadblocks that prevent their realization, including the use of exotic forms of matter that exist only in theory.

In an email to The Debrief, Dr. Fell explained that superluminal warp drives (meaning faster than light) “have a whole host of fundamental difficulties that have not been solved yet, not even including negative energies that have historically plagued previous solutions.”

The Debrief previously covered the Applied Physics team’s attempt to solve the problem with a physical warp drive capable of approaching the speed of light but not exceeding it. Although that metric has conquered outstanding physics hurdles that have hampered previous models, the AP team said their new paper used a subluminal version of the original Alcubierre metric.

“The Alcubierre metric is used as a proxy for any zero ADM mass solution, meaning any warp drive solution that does not exhibit typical gravitational effects,” Dr. Fell explained.

Any Warp Bubble Traveling Faster than 5% the Speed of Light

In a recent post on Medium, Dr. Loeb said his previous studies confirmed that the distortion of spacetime proposed in the warp drive metric “must perturb the air” when passing through Earth’s atmosphere. The Harvard scientists also noted that those studies showed that such an atmospheric perturbation caused by a relativistic warp drive “would inevitably generate a bright fireball by shocking the air around it.”

In a previous article, AP physicists told The Debrief that a well-known 2006 UAP sighting in Chicago that included a hole “punched in the clouds” also fits with predictions of warp drive interactions with Earth’s atmosphere.

To follow up on his latest proposal, Loeb and Fell conducted detailed hydrodynamical simulations of the airflow around warp bubbles encasing theoretical spacecraft. In warp drive models, a warp bubble encases the craft in an area of stable space, keeping it completely still as the drive propels toward its destination by warping space itself. This effect is what gives the drive its name.

After running the numbers, Loeb and Fell determined that the heated air around the warp bubble would reach 220 billion degrees Kelvin if the spacecraft was traveling fast enough. Critically, the team calculated the effects of such craft passing through the atmosphere “at a fraction of the speed of light.”

“Any warp bubble traveling faster than 5% the speed of light through the atmosphere will generate optical signatures qualitatively the same as those presented in our paper,” Fell told The Debrief, before adding “slower than that, and the optical signature has a different physical origin.”

Loeb said the calculation suggests that an “aircraft-scale” spacetime (warp) bubble moving at the right velocities would produce luminosities exceeding one terawatt. For comparison, the AP scientist noted that this amount of energy is roughly one-tenth of global electric power consumption.

A “Brilliant Fireball” Detectable at Great Distances

When describing how this high-energy atmospheric interaction would appear to a ground observer, Loeb said, “It should be easy to detect such a brilliant fireball at great distances.”

For example, Loeb explained that any observer would witness two distinct signals suggesting that a warp drive-propelled craft has entered the atmosphere. The first would be a direct, high-energy burst of radiation emanating from the shock zone. Next, a wave of extremely energetic photons would get absorbed by the thicker lower atmosphere. Loeb said this “extreme” energy ends up “reradiated” as light in the visible ultraviolet (UV) spectrum.

“This will manifest itself as a bright atmospheric glow directly below the shock zone,” the Harvard scientist explained.

The study authors also noted that some fireballs would be larger than others. In the right scenario, Loeb suggested that the atmospheric glow caused by a warp drive could “completely dominate the surface solar flux by orders of magnitude.” This means it would be the brightest object in the sky even during daytime.

Conversely, the Applied Physics team noted that warp drives moving much more slowly through the atmosphere, including just above the speed of sound, would not be nearly as bright as those moving above 5% the speed of light. Loeb said warp drive craft at rest or moving well below relativistic speeds “would not generate such extreme luminosities.”

Micrometer-Sized Warp Bubbles as Weapons?

Another intriguing aspect of the study involves the possibility of extremely small warp bubbles interacting with the atmosphere to generate visible light signatures. For example, Loeb suggested that “a micrometer-scale bubble moving at a few times the sound speed at sea-level would result in a modest luminosity of order 1 kilowatt.”

“This slower velocity regime is something we are currently studying,” Fell told The Debrief.

When asked what practical benefits a micrometer-sized warp bubble seemingly too small to accommodate a full-sized spacecraft might offer, Fell joked that a discussion with “my alien buddies” resulted in some unexpected solutions. This included one potentially ominous possibility and another more fantastical explanation that sounds like something right out of the world of Harry Potter.

The first harrowing solution Fell and his hypothetical “otherworldly” colleagues offered involved using tiny warp drive-enabled craft as weapons. For example, the AP physicist explained, even a microscopic warp bubble would exhibit “tremendous gravitational tidal forces.” Based on their models, Fell told The Debrief that such a micrometer-sized warp bubble “would obliterate almost any material in its path, especially if it’s traveling exceedingly fast.”

“This is a very difficult topic to analyze critically because we don’t really know if superluminal warp travel is allowed by the laws of physics,” Fell also told The Debrief. “Would it create observable signatures? Almost certainly. Would any human still be alive to record the measurement? Probably not.”

The Interior of a Tiny Warp Bubble—Harry Potter’s “Weasley Tent”?

Since any plan that would likely annihilate the Earth “wouldn’t be very practical for the aliens,” Fell offered The Debrief an even more fantastical explanation for why our spacefaring visitors may want to engage a micrometer-sized warp bubble, which scientists call the Van Den Broeck warp drive.

As Fell explained, general relativity allows the surface area of a theoretical warp bubble to be microscopically small, “while the interior volume may be as large as you want.”

“I always think of the Weasley tent at the Quidditch World Cup in the 4th Harry Potter book (Harry Potter and the Goblet of Fire),” the AP physicist told The Debrief. “The outside looks like a normal camping tent, but the inside is this great big room.”

Surprisingly, such fantasy world solutions to practical scientific problems are theoretically achievable within general relativity. As a result, Fell added, if the models were correct and such a warp bubble was viable, relativity as we understand it “provides an avenue for microscopic warp bubbles that can house great big ships or other cargo.”

“The applications are really endless for that,” he added.

Connecting Warp Drive Physics with UAP Sightings

When discussing the connection between their findings and the accounts of Unidentified Aerial Phenomena (UAP) chronicled in recent Pentagon document releases, Loeb pointed to a series of ‘puzzling’ orbs “mentioned explicitly in a reliable report dated June 5, 2026.”

According to Loeb, that report, signed by Dr. Jon Kosloski, director of the All-Domain Anomaly Resolution Office (AARO) in the Pentagon, describes “an orange ‘mother’ orb launching smaller red orbs.” Loeb’s retelling of Dr. Kosloski’s account also notes that “40% of the phenomena during the reported event lack a reasonable explanation and remain unresolved.”

Although some UAP reports describe physical craft, researchers have often noted that the largest category involves glowing light or orbs. Although Loeb did not suggest all or any sightings were alien craft, the study’s author noted that warp-drive physics supports the idea that some of these reports could be explained by advanced propulsion technology.

“Could some of the reported orbs be slow warp bubbles?” Loeb asked. “There is one way to find out: by studying them experimentally.”

Dr. Fell agreed, telling The Debrief that “the important thing is that purported UAP observations can be critically examined through the laws of physics, as we know them today.”

“If there really are intelligent beings visiting our Earth, how did they get here?” he asked. “What was their mode of transport? If such a spacefaring vehicle entered our atmosphere, what would it look like?”

While neither author suggested that their mathematical solution settles the debate about aliens or alien craft visiting Earth, Fell said their paper “places observational constraints on these questions and narrows the possibilities.”

AP founder Gianni Martire similarly told The Debrief that his team’s paper does not prove warp drive or alien life. However, the enthusiastic scientist did note that the mathematics makes it possible that science “may simply be catching up to UFO lore that has existed for hundreds of years.”

“It’s possible E.T has been flashing his headlights at us along, not by choice,” Martire said.

The study “Radiative Signatures from Warp Drives Traveling Through the Earth’s Atmosphere” is available on the preprint server, arXiv.

Christopher Plain is a Science Fiction and Fantasy novelist and has spent the last six years as Associate News Editor and Head Science Writer at The Debrief. Follow and connect with him on X, learn about his books at plainfiction.com, or email him at christopher@thedebrief.org.

Nagoya University scientists working to bridge the supersonic-to-hypersonic gap report successful combustion in a hypersonic scramjet engine at speeds below Mach 5 using a specially designed igniter called an RD torch.

The researchers behind the achievement said their successful tests highlight the RD torch’s potential for practical use in future scramjet-powered airbreathing hypersonic engines.

Scramjets Face Challenges in Bridging the Supersonic-to-Hypersonic Gap

In their study, project leader Professor Jiro Kasahara and colleagues explain that hypersonic engines capable of propelling aircraft above Mach 5, or five times the speed of sound, “have been actively researched for the development of high-speed transport systems.” Among the most noteworthy designs developed in this pursuit is the scramjet engine.

While tests have shown they can reach these speeds, scramjets fail to maintain ignition below Mach 5. As a result, Professor Kasahara and colleagues note that “other propulsion systems are needed to accelerate a vehicle to those speeds.”

Turbo-ramjet engines have offered some support. However, these airbreathing engines top out at speeds approaching Mach 3-4. The study authors note that this discrepancy has resulted in “a gap with scramjet engines.”

To bridge this gap, the research team decided that rather than increasing the upper speed limit of the turbo ramjet, they would instead explore lowering the “operating limit of scramjet engines to Mach 3–4.”

According to the team, the primary challenge in reducing scramjet speeds below Mach 5 is the corresponding reduction in the total temperature of the airflow entering the engine. Consequently, they explain, “ignition becomes more difficult.” In fact, they concede, “autoignition is not expected” at the sub-Mach 5 speeds they were targeting. This meant the team had to find a way to improve igniter performance.

RD Torch “A Promising Candidate” for Scramjet Ignition

When selecting an ignition enhancer, the team noted that previous efforts have explored solutions ranging from spark plugs, glow plugs, and pulse detonators to lasers, plasma torch igniters, and even burned-gas (deflagration) torches. However, the authors observed that most previous studies focused on “higher Mach numbers than those targeted here.” As a result, they add, ignition performance in a scramjet engine under low-flight-Mach, low-temperature conditions “remains unclear.”

The team evaluated a cylindrical rotating detonation combustor (RDC). Unlike other electrically based solutions such as spark plugs or glow plugs, the team described the RDC as “a combustor in which detonation waves continuously propagate along the inner wall surface to burn the fuel–oxidizer mixture.”

The researchers explained that detonation waves are supersonic combustion waves initiated by shock waves inside the scramjet’s combustion chamber. Although the system has been studied as a rocket engine, to achieve their results, the team used what they called a rotating detonation torch (RD torch), comparing the design to conventional deflagration torches, which initiate ignition by “uniformly burning the fuel and oxidizer throughout the combustion chamber” and then continuously injecting the burned gas into the scramjet combustor.

“The RD torch, like conventional deflagration torches, burns fuel and oxidizer in the combustor and continuously discharges combustion gases into the cavity and is therefore also classified as an active ignition device,” the team explained, adding that “we consider the RD torch to be a promising candidate for use as an igniter in scramjet engines.”

“Ignition and Flameholding of the Main H2 Were Successfully Achieved”

Before conducting the tests, the Nagoya University team set out three primary objectives. First, they wanted to design a custom RD torch “capable of operating at a mass flow rate comparable to that of conventional deflagration torches” and use that design to “investigate the combustion conditions in the RD torch under supersonic flow.” Second, they planned to examine the detonation wave’s propagation characteristics within the RD torch, and third, they hoped to achieve ignition and flameholding under conditions equivalent to flight Mach numbers from 3 to 4.

After completing their testbed RD torch and thus the study’s first objective, the researchers conducted a series of combustion experiments. Critically, they performed these experiments in the scramjet model combustor and a vacuum chamber model.

According to their published results, the team’s RD torch, designed to bridge the supersonic to hypersonic gap, “successfully achieved continuous injection of burned gas into the cavity, with combustion nearly completed even during main H2 combustion.”

“Based on the observed increases in flame height and width in the flame chemiluminescence images, ignition and flameholding of the main H2 were successfully achieved under simulated flight Mach 3–4 conditions, with the RD torch operating in detonation mode,” they write. “Notably, the mainstream flow in the scramjet model combustor remained supersonic.”

The team presents these results as “demonstrating robust torch operation,” adding that “the RD torch functioned as intended.”

When discussing the success of the RD torch in their approach, the Nagoya University team said their results “confirm successful supersonic combustion and demonstrate the RD torch’s ability to reliably ignite and sustain main H2 combustion under low-Mach scramjet conditions, highlighting its potential for practical application in future airbreathing hypersonic engines.”

The study “Experimental Study of a Cylindrical Rotating Detonation Combustor for Scramjet Ignition” was published in the Journal of Propulsion and Power.

Christopher Plain is a Science Fiction and Fantasy novelist and has spent the last six years as Associate News Editor and Head Science Writer at The Debrief. Follow and connect with him on X, learn about his books at plainfiction.com, or email him at christopher@thedebrief.org

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