
Have Astronomers Finally Found an Exomoon?
Data from the James Webb Space Telescope and other observatories suggests a supervolcanic exomoon may lurk around the giant exoplanet WASP-39b

Have Astronomers Finally Found an Exomoon?
Data from the James Webb Space Telescope and other observatories suggests a supervolcanic exomoon may lurk around the giant exoplanet WASP-39b

Saturn’s Moon Enceladus Has Complex, Life-Friendly Chemistry
A fresh analysis of old data has found rich organic chemistry within the hidden ocean of Saturn’s moon Enceladus


NASA’s First-Ever Alien-Hunting Space Telescope Could Enlighten Our New Dark Age
The Habitable Worlds Observatory is poised to tell us whether Earth-like planets are common—if it can get off the ground

Asteroid ‘Families’ Reveal Hidden Histories and Impact Risks across the Solar System
Many asteroids are related, but their family trees can be hard to trace

The Moon Is Rusting—Thanks to ‘Wind’ Blown from Earth
Lunar minerals can rust when bombarded with high-energy oxygen particles, experiments show

This Blazing Exoplanet Breaks All the Rules about Alien Atmospheres, JWST Finds
Hot, small and old—exoplanet TOI-561 b is just about the worst place to look for alien air. Scientists using JWST found it there anyway

The Sordid Mystery of a Somalian Meteorite Smuggled into China
How a space rock vanished from Africa and showed up for sale across an ocean

Astronomers’ Exoplanet Haul Tops 6,000 Alien Worlds
It’s a crowded galaxy, the latest exoplanet tally shows

This Rock May Hold Proof of Life on Mars
The Perseverance rover’s new findings set the stage for bringing Martian samples back to Earth to test whether microbes once inhabited the Red Planet

Hints of Atmosphere on Earth-Sized Exoplanet Raise Hopes for Life
A monumental sign of an atmosphere on TRAPPIST-1e could be the precursor to finally finding a living world around another star

New Instrument Checks on Proxima Centauri’s Planets
Fresh results from near-infrared instruments foretell a bright future for finding life elsewhere in the Milky Way

If This Asteroid Hits the Moon, Watch for Shooting Stars and Stricken Satellites
The 60-meter asteroid 2024 YR4 has a 4 percent chance of hitting the moon. Could such a lunar collision create a dangerous new meteor shower?