Recent flybys of the fiery world refute a leading theory of its inner structure — and reveal how little is understood about ...

K2-18b, an exoplanet 120 light-years away, may be the best hope to confirm that life exists beyond Earth. Here's what to know.

The Ice War on Europa, also known as War Forever, is an RPG zine project started by Twitter / X user @lolt64 and various ...

Jupiter’s four largest moons – Io, Europa, Ganymede and Callisto – were the first ever discovered orbiting another planet. They were spotted by Galileo Galilei more than 400 years ago ...

For instance, the Hubble Space Telescope entered safe mode relatively recently as scientists worked on remedying some ...

K2-18b, an exoplanet 120 light-years away, may be the best hope to confirm that life exists beyond Earth. Here's what to know ...