NASA selected a mission concept to research how space weather and dynamics within Earth’s atmosphere influence the space environment and help improve prediction capabilities for impacts on crucial technology, such as GPS and low Earth orbit satellites, as well as astronauts in space.

The DAPHNE (Dynamic Atmosphere-Ionosphere Explorer) mission will enter Phase B of development, which includes planning and design for flight and mission operations. It will use identical twin satellites to study how changes in Earth’s lower atmosphere influence our planet’s upper atmosphere, where space weather is manifested.

“NASA is advancing the United States’ leadership as a space weather-ready nation, and by providing new insights into Earth’s atmosphere we can better predict and prepare for impacts in our daily lives on Earth and in space,” said Nicky Fox, associate administrator, Science Mission Directorate, NASA Headquarters in Washington. “As NASA sends astronauts beyond Earth’s magnetic protection to the Moon, Mars, and beyond, DAPHNE will join the NASA science fleet strategically located across the solar system to provide data that will help mission planners predict and mitigate the effects of space weather for the benefit of all.”

The DAPHNE mission’s low-risk high-return concept will provide coordinated, multi-point measurements of neutral winds, temperature, and composition in the thermosphere. The ionosphere and thermosphere regions are where Earth’s neutral atmosphere transitions into the ionized plasma of space. In this thin shell that surrounds the planet, the atmosphere is in constant motion, shaped by the influence of solar activity and changes in the lower atmosphere and in near-Earth space.

Fundamental observations and physical insights from the DAPHNE mission will incorporate lower-atmospheric energy data to advance space weather predictive capabilities. The mission is led by Aimee Merkel from the Laboratory for Atmospheric and Space Physics at the University of Colorado, Boulder.

The mission will be subject to a confirmation review in 2027, which will assess the progress of the mission and the availability of funds. If confirmed, the total estimated cost of the mission, excluding launch, will not exceed $250 million in fiscal year 2023 dollars, with a mission launch date of no earlier than 2029.

The DAPHNE mission was proposed as a concept study in response to the DYNAMIC (Dynamical Neutral Atmosphere-Ionosphere Coupling) mission announcement of opportunity. Funding and management oversight for this mission is provided by the Solar Terrestrial Probes program at NASA’s Goddard Space Flight Center in Greenbelt, Maryland.

For more information on NASA’s heliophysics missions, visit:

https://science.nasa.gov/heliophysics

-end-

Abbey Interrante / Karen Fox
Headquarters, Washington
202-358-1600
abbey.a.interrante@nasa.gov / karen.c.fox@nasa.gov

With CO2 greening the planet, any possible harms are outweighed by the benefits of more trees and crops. And that's even before you subtract the monumental cost of Net Zero, says Matt Ridley.

The post Net Zero Can Never Be Worth it appeared first on The Daily Sceptic.

The Pacific warning has become an active global climate event.

Sentinel-6 satellite data shows strengthening warm-water waves in the Pacific, pointing to the likely arrival of El Niño and its global weather impacts later in 2026. Several months before an El Niño develops, large waves of warmer, elevated water travel eastward across the Pacific Ocean. Satellite observations in 2026 have detected several of these waves. [...]

Amy McGovern was the director of an A.I. institute dedicated to weather forecasting — until the National Science Foundation ended its funding.

Smart weather-monitoring device vendor AcuRite has delayed plans to force users onto a new companion app. The transition from My AcuRite to AcuRite NOW, which AcuRite previously set for May 30, “has raised serious questions and concerns among many long-time users,” AcuRite’s VP of product development, Jeff Bovee, told Ars Technica.

AcuRite, whose devices include weather stations, rain gauges, and indoor thermometers, told customers that it would shut down My AcuRite at the end of May. Devices owners would have to use AcuRite NOW, an iOS and Android app launched in June 2025, to control their gadgets instead.

Some long-time users lamented being forced to new software when the current software worked fine, if not better, than the new app. When Ars first reported on AcuRite in May, AcuRite NOW lacked some features of My AcuRite, including the ability to rename multiple temperature sensors, report temperatures in non-integers, as well as an online dashboard option. Users have also highlighted problems uploading data to weather sites and a poor layout with wasted space.

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From a wet winter in the Southwest to fewer Atlantic hurricanes, this is what to expect as a potential super El Niño takes shape.

The National Oceanic and Atmospheric Administration gives the climate event a 63% chance to "rank among the largest El Niño events in the historical record going back to 1950."

Unusually tall red auroras over Japan may be revealing that some solar storms are stronger than scientists realize. A study published in the Journal of Space Weather and Space Climate reports that red auroras observed over Japan extended to altitudes of roughly 500-800 kilometers above Earth. The discovery was made by researchers from Hokkaido University [...]

Typhoon Jangmi dazzled from space with a giant swirling eye while drenching parts of Japan with heavy rain. From late May into early June 2026, Typhoon Jangmi slowly tracked north-northwest across the Philippine Sea on a path toward southern Japan. Although the storm moved at a relatively slow pace, it spread intense rainfall across a [...]

A rapidly intensifying super typhoon sent giant atmospheric ripples skyward, revealing a hidden connection between extreme weather and near-space. In April 2026, Super Typhoon Sinlaku swept across the North Pacific, bringing torrential rain and flooding to parts of the Mariana Islands. The storm intensified into a “violent typhoon,” the highest category used by the Japan [...]

A June update by the European Centre for Medium-Range Weather Forecasts suggests that the coming weather event will be the strongest ever measured.

A backwards sunspot hurled a merged plasma cloud toward Earth, promising widespread auroras tonight.

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As summers become hotter, air conditioner sales are booming. If you’re looking to invest, here’s what to consider

When a heatwave struck the UK this week, Jon Connorton, a software developer, began monitoring temperatures inside his east Hampshire terrace house. With some rooms reaching close to 40C, it was time to deploy the air conditioner. “We just wheel it out in emergencies,” he said. “We were having trouble sleeping.”

Connorton and his wife have a portable air conditioner. These plug-in devices cool interior air by removing heat from it and blowing that heat outside, typically via a large hose slung from a window or door.

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© Photograph: LeoPatrizi/Getty Images

© Photograph: LeoPatrizi/Getty Images

© Photograph: LeoPatrizi/Getty Images

Government should fit solar panels to power air con units where vulnerable people live, say green advocates

As the country baked in record May temperatures, climate campaigners have said the UK government needs to urgently start installing air conditioning units in schools, care homes and places where vulnerable people live.

In 2022, when temperatures spiked above 40C (104F), about 3,000 people in Britain died of causes associated with heat. Studies show air conditioning can cut heat related deaths by 75%.

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© Photograph: mar-fre/Alamy

© Photograph: mar-fre/Alamy

© Photograph: mar-fre/Alamy

AcuRite must kill its customers’ favorite companion app due to “obsolete technology," VP of product development Jeff Bovee tells Ars Technica.

AcuRite, which makes smart weather-monitoring devices, announced this month that the My AcuRite iOS and Android app that has been around since 2016 won’t be available after May 30. After that date, device owners must use AcuRite NOW, which AcuRite released in June 2025, to control their gadgets.

The announcement has frustrated long-time AcuRite users, largely because the new app lacks some of its predecessors' capabilities. For example, AcuRite NOW doesn’t allow renaming multiple temperature sensors, organizing on-screen sensors, or reporting temperatures as anything other than whole numbers (AcuRite says it's working on adding some of these features).

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WASP-94A b is a hot, tidally locked gas giant orbiting close to one of the stars in a binary system roughly 690 light-years away from Earth. In a new Science study, scientists led by Sagnick Mukherjee, an astrophysicist at Johns Hopkins University, used the James Webb Space Telescope to learn what the weather looks like out there.

Tidal locking means that you no longer have day- and night-side temperature differences sweeping across the planet. “We wanted to understand the atmospheres of such planets,” Mukherjee says. “Are they static or dynamic? Do they have winds? Do they have clouds?” His team found that, on WASP-94A b, it’s cloudy in the morning, but the skies are clear in the evening. The fact that we didn’t know this already means we might have gotten the chemistry of this and many other exoplanets surprisingly wrong.

Averaged atmospheres

WASP-94A b has a mass slightly below half of Jupiter but has a diameter that’s over 70 percent wider. “This means the planet has low density, and its atmosphere extends further out into space, which makes it easier to observe,” Mukherjee explains. When astronomers study atmospheres like this, they usually rely on transmission spectroscopy. By analyzing the spectrum of light filtering through the planet’s atmosphere as it crosses in front of its star, they can figure out its chemical composition.

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© NASA, ESA, and L. Hustak (STScI)