A new study challenges the dream of water-rich “Hycean” planets like K2-18b, suggesting that most sub-Neptunes lose their ...

Hot, small and old—exoplanet TOI-561 b is just about the worst place to look for alien air. Scientists using JWST found it ...

Astronomers found an atmosphere where they least expected it—clinging to an exoplanet that’s too small, too hot and too old ...

High-energy particles zipping through the cosmos are harmful to life on Earth, but scientists think it could be food for ...

In its youth, the dwarf planet Ceres may have brewed a chemical banquet beneath its icy crust.

"Alien: Earth" takes the famous franchise in a bold new direction. Here's what happened at the end of Season 1 and what it ...

Who hasn't looked into the sky and wondered if there's life out there, somewhere, looking back at us? Is it possible there's ...

For decades, scientists have grappled with a profound question known as the Fermi Paradox: if the galaxy is teeming with the ...

White dwarfs may still host habitable planets. Conditions like tidal heating and migration shape their potential for life.

Elizabeth Rayne is a creature who writes. Her work has appeared in Popular Mechanics, Ars Technica, SYFY WIRE, Space.com, ...

Body characteristics needed for deep-sea survival can give creatures an alien-like look. But one scientist called the newly discovered bumpy snailfish "adorable." ...

As with many big space stories, 3I/ATLAS is getting a fair share of attention as well as some more controversial theories ...