Risk of Hydrazine Use Following Freeze–Thaw Exposure
For more information, contact Jonathan E. Jones, Langley Research Center, jonathan.e.jones@nasa.gov Download the PDF version The purpose of this Technical Bulletin is to communica…
Silicon solar cells could cut satellite power costs by up to 90%
Switching to modern silicon solar cells could cut the cost of powering satellites by as much as 90% based on beginning-of-life (BOL) performance, according to a review led by the …
NASA’s Hubble Seeks Lensed Supernova, Marks 200,000 Orbits
NASA’s Hubble Space Telescope completed its 200,000th orbit around Earth on Sept. 19, marking another new milestone for an observatory that continues to transform our understandin…
UK to launch new military space squadron to protect satellites
Britain announced Wednesday that it will launch a new military space squadron to defend the country's satellites, the latest move as countries race to develop military space capab…
APOD: 2026 September 23 – A New Lunar Crater: McGetchin
APOD Science APOD APOD: 2026 September 23 – A… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss APOD Astronomy Picture of the Day Discover the …
Boom Year for Desert Blooms
Carpets of wildflowers burst from arid, ochre-colored land in Western Australia following winter rains.
Curiosity Blog, Sols 5010-5015: Checking out the Bands
Catherine O’Connell-Cooper, APXS Strategic Planner and Payload Uplink/Downlink Lead, University New Brunswick, NB, Canada Earth planning date: Friday, Sept. 11, 2026 This week we …
Is a nearby advanced alien civilization out there waiting to pounce on Earth? Unlikely, says new study
Science fiction suggests that life on other planets, if it exists, is likely far more advanced than life on Earth. A recent study suggests otherwise.
Risks of Decompression Sickness and Venous Thromboembolism during Spaceflight and Patent Foramen Ovale Implications
NASA’s Office of the Chief Health and Medical Officer formed a working group in August 2026 to review the most recent data related to extravehicular activity (EVA) prebreathe test…
Earth's chorus waves show limited link to rapid electron loss from radiation belts
The Van Allen radiation belts are huge, doughnut-shaped regions of highly energetic charged particles trapped by Earth's magnetosphere. These charged particles play a major role i…
Largest dataset of its kind could clarify how massive stars shaped early galaxies
The more astronomers learn about the universe's earliest galaxies, the stranger they seem. Many of their surprising properties may be explained by differences between their massiv…
NASA-Funded Research Finds Complex Life Defying Record Heat
Lee esta historia en español aquí. NASA-supported scientists have discovered an organism that lives at extreme temperatures previously thought impossible for complex life. High te…
NASA-Funded Research Finds Complex Life Defying Record Heat
NASA-supported scientists have discovered an organism that lives at extreme temperatures previously thought impossible for complex life. High temperatures can cause the destructio…
Astronomers detect radio signals coming from an exoplanet for the first time
Exoplanets are exotic worlds orbiting distant stars far beyond our solar system. Ever since the first ones were discovered in the 1990s, astronomers have turned their attention to…
3I/ATLAS has an extreme taste for heavy water
More and more details about 3I/ATLAS are filtering through the scientific process as time goes on. Our third known interstellar visitor attracted the attention of some of the worl…
NASA’s Chandra Finds Unusual Objects in Pinwheel Galaxy
Using NASA’s Chandra X-ray Observatory, researchers found mysterious objects that give off unusually low-energy X-rays but intense levels of ultraviolet radiation. One of the gala…
Milky Way's first microblazar may produce fastest particles in the galaxy
An international team of astronomers from ASTRON, JIVE, the University of Amsterdam and other institutions has found the first so-called "microblazar" in the Milky Way. This stell…
The tilt in Earth's axis makes the apparent position of continents shift with the seasons
Most kids learn in elementary school that the seasons are caused by Earth rotating on a tilted axis during its yearly orbit around the sun. The substantial tilt, about 23.5 degree…
NASA Astronaut to Answer Questions from New Hampshire Students
Students in New Hampshire will hear from NASA astronaut Anil Menon as he answers prerecorded STEM questions while aboard the International Space Station. The Earth-to-space call w…
A 42-light-year X-ray tail links a pulsar to previously 'orphan' gamma rays
Understanding the origin, acceleration and propagation of high-energy cosmic rays has been a century-old mystery in astrophysics. Recently, joint observations from China's Einstei…
APOD: 2026 September 22 – Chance Triple Alignment: Plane, Space Station, Sun
APOD Science APOD APOD: 2026 September 22 –… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss APOD Astronomy Picture of the Day Discover the co…
An Epic View of the Seasons
The tilt in Earth’s axis of rotation makes the apparent position of continents shift with the seasons in imagery from a NASA camera in deep space.
Jupiter uses a surprisingly complex system to fend off particles from the sun
A University of Iowa-led research team has reported in a new study the most detailed observations to date of the bow shock at Jupiter, our solar system's gas giant. The findings f…
Embracing the Equinox
Depending on your locale, equinoxes can be seen as harbingers of longer nights and gloomy weather, or promising beacons of nicer temperatures and more sunlight. Observing and pred…