When astronomers search for planets that could host liquid water on their surface, they start by looking at a star's ...

Unlike any other moon, Io is locked in a gravitational tug-of-war between Jupiter and its neighboring moons, stretching and ...

Andrew McCarthy coordinated with friend and YouTube personality Gabriel C. Brown to create the striking image on Nov. 8 in ...

Io, moon of Jespiter Jupiter, is famously volcanically active. It has more than 400 active volcanoes, over an area the size of Asia. Some of the volcanic mountains are taller than Mount Everest.

Researchers have found Saturn’s moon Enceladus has heat circulating beneath its icy crust, meaning the chemistry of biology ...

Behold the volcano-blanketed moon, Io. After swooping by Jupiter's tortured moon on Feb. 3, NASA's Juno spacecraft beamed back some of the closest-ever images of this unique world. The agency's deep ...

Miranda, a small moon of Uranus, hides a feature so extreme that it defies most Earth-bound comparisons. Verona Rupes, a ...