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What ancient Mars rocks reveal about its buried carbonate stores

Carbonate minerals are among the best records of past liquid water on Mars: They form when water carrying dissolved carbon dioxide reacts with rock, and their composition reflects the chemistry of both. Yet Mars has surprisingly ...

CubeSat instrument extends solar storm warnings 10x

The sun is the reason life exists on our small, blue planet. It provides solar radiation that warms the planet and ignites intricate biochemical processes like photosynthesis, producing oxygen for life to breathe. However, ...

Laser altimeter BELA ready to explore Mercury's surface

Launched on Oct. 20, 2018, the joint ESA/JAXA BepiColombo mission has traveled for almost eight years, using a carefully planned but eventful sequence of planetary flybys and solar-electric propulsion to gradually approach ...

How the 2024 solar superstorm drained Earth's radiation belt

In May 2024, Earth experienced its most intense geomagnetic storm since the Halloween storms of 2003. This "superstorm" filled night skies in many parts of the world with colorful aurorae, and it disrupted some infrastructure, ...

NASA's next great observatory could spot oceans on distant worlds

We've found more than 5,500 exoplanets so far. Dozens of them are in the habitable zones of their parent stars, where, at least in theory, they could host an ocean. But we've never definitively found a liquid ocean on another ...

What's carving active gullies on Mars? It's not water

Scientists were shocked when they received the first images of Martian gullies. They were even more shocked as those gullies appeared to change over time. Their similarities to gullies seen on Earth were uncanny, but all ...

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Astrobiology
Asteroid Ryugu's dust reveals nitrogen's slow concentration into complex molecules
Planetary Sciences
Mercury is shrinking more than we thought
Space Exploration
Scientists want to 3D print houses on Mars with the help of yeast
Planetary Sciences
Sun's largest sunspots may have potential to trigger superflares
Planetary Sciences
'Fingerprints' inside the sun could reveal if it once swallowed a planet
Planetary Sciences
BepiColombo measures Mercury's particle bombardment up close
Astronomy
Ancient Swedish Goths had surprisingly accurate calendars
Planetary Sciences
JWST discovers that Chariklo's invisible rings are changing
Astronomy
Beryllium signal identifies stars that have swallowed rocky planets
Astrobiology
Tiny salt crevices could act as miniature 'Greenhouses' for Martian microbes
Astronomy
Hubble and Webb find that far-out solar system objects 'remember' the past
Astronomy
Interstellar visitor 3I/ATLAS carries clues from the frozen outskirts of another star system
Astrobiology
Giant impacts may strip small icy moons of subsurface oceans
Space Exploration
A new mission could rendezvous with Halley's Comet in 2061
Astrobiology
Early Earth's auroral belts may have formed a natural ion-beam reactor for prebiotic chemistry
Planetary Sciences
New model measures economic risks solar storms pose to US power grid
Planetary Sciences
Spacecraft bound for Mercury begins 'tricky' arrival
Planetary Sciences
Particle shape and size predict asteroid strength, revealing Bennu's surface is 50 times weaker than ground coffee
Planetary Sciences
How Mercury formed its graphite crust and core
Planetary Sciences
Why doesn't Venus have a moon? A new study may have the answer

Other news

General Physics
What kills Schrödinger's cat? Underground experiment rules out gravity model for quantum decoherence
Bio & Medicine
Activated learning-and-memory protein forms growing molecular chains, imaging reveals
Ecology
Threatened bumblebee populations in England and Wales face severe genetic declines
Cell & Microbiology
Two spike 'keys' work together to let SARS-CoV-2 enter cells, study reveals
Quantum Physics
Real-time quantum jump in sound observed for first time
Biotechnology
Virtual biotech company puts thousands of AI scientist agents to work on drug discovery
Earth Sciences
Amazonian study identifies most effective ways of conserving biodiversity and carbon
Quantum Physics
New benchmark puts quantum computers to the test and reveals their limitations
Mathematics
How a simple game of 20 questions could help make AI fit for the future
Plants & Animals
Deep-sea hydrothermal vents may be a hot spot for pregnant Antarctic krill
Earth Sciences
Nullarbor mapping reveals surface signs of deep, hidden cave systems
Plants & Animals
Cuttlefish suckers reveal how they grip rough prey—and could inspire better technology
Ecology
Sixteen new fungus species found hiding in Thailand's flowers
Plants & Animals
Deep-sea crustaceans caught hitching rides on giant sea spiders
Ecology
Capybaras in the desert? Fossil casts doubt on Atacama as world's oldest continuously dry region
Astronomy
Japanese supercomputer simulations may explain Webb's Little Red Dots
Ecology
European ash pangenome could help researchers breed a generation of trees resistant to ash dieback
Archaeology
Laser scans reveal 23 hidden ship carvings on Bronze Age temple wall in Cyprus
Condensed Matter
Diamond quantum sensors can detect heart magnetism at room temperature without skin contact
Astronomy
Black holes from stellar to supermassive size may follow one jet-launching rule

Radar echoes from Europa reveal secrets beneath the ice

A team of scientists has used NASA's Goldstone Solar System Radar and the U.S. National Science Foundation Green Bank Telescope (NSF GBT) to carry out the most extensive radar study to date of Europa, the ocean world orbiting ...

Oddball exoplanet challenges what it means to be a hot Jupiter

New research led by a scientist at IPAC—a science and data center for astrophysics and planetary science at Caltech—studying the hot Jupiter CoRoT-2 b has settled on one of the three leading hypotheses explaining why its ...

Future Martian colonists will need a new relativistic clock

We think of atomic clocks as the definitive timekeepers. They are famous for being accurate down to the picosecond. Unfortunately, they are still subject to general relativity, so if you put them on a different planet, they ...

Could Earth have sent life to Jupiter's moon Europa?

Could Earth have seeded Jupiter's moon Europa with bacterial life, where it could have taken hold in Europa's ocean and perhaps evolved into something more? That's the hypothesis of a new paper in the International Journal ...