Beneath the frozen crust of Jupiter’s moon Europa lies a vast subsurface ocean that could harbor extraterrestrial life, ...

New models suggest that Europa has very little tectonic activity at its seafloor, which is potentially catastrophic news for ...

Research into Jupiter’s moons shows Io and Europa did not evolve apart but formed with opposite compositions from the ...

Jupiter's moon count reaches 95+ official satellites. Explore the history of the Jovian system, from Galileo to the latest NASA discoveries.

New research indicates Europa's ocean might be less active than previously thought. Scientists studied Europa's interior and found its seafloor may be still. This suggests less energy for life to ...

Europa, one of Jupiter’s most intriguing moons, has long been a target for astrobiologists searching for signs of life beyond Earth. Beneath its thick, icy shell lies a vast ocean, and scientists have ...

The giant planet Jupiter has nearly 100 known moons, yet none have captured the interest and imagination of astronomers and space scientists quite like Europa, an ice-shrouded world that is thought to ...

The predawn hours of Aug. 8 present a perfect opportunity to see Jupiter's four largest moons line up next to the "King of the Planets" as it voyages through the stars of the constellation Gemini.

A comet from another star system will swing by Mars on Friday as a fleet of spacecraft trains its sights on the interstellar visitor. We already know a decent amount about how planets form, but moon ...

In a landmark observation by a team of international researchers, NASA's Juno spacecraft has, for the first time, clearly detected the auroras of Jupiter's moon Callisto. This discovery completes the ...