How nutrients from Europa's icy shell reach its ocean has been unclear despite several theories.

"Most excitingly, this new idea addresses one of the longstanding habitability problems on Europa and is a good sign for the ...

Saturn's innermost moon, which resembles the Death Star from Star Wars, may be a "stealth" ocean world, according to new research. Mimas, which is the smallest and closest to Saturn of the ringed ...

CAPE CANAVERAL, Fla. – Saturn's giant moon Titan may not have a vast underground ocean after all. Titan instead may hold deep layers of ice and slush more akin to Earth’s polar seas, with pockets of ...

It was long thought, up until recently, that asteroids and comets delivered Earth's oceans during the very early Solar System ...