Once you get out to Ganymede, many people stop caring. Io and Europa have stolen the spotlight, leaving the last two Galilean moons as a fleeting thought, if even that. Ganymede is the third ...

True color image of Saturn's largest moon, Titan, passing in front of the ringed planet taken by NASA's Cassini spacecraft. (Credit: NASA/JPL-Caltech/Space Science Institute) Image of Ganymede, ...

NASA's Voyager 2 spacecraft snapped this color image of Jupiter's moon Ganymede, the largest satellite in the solar system, on July 7, 1979 from a distance of 745,000 miles (1.2 million kilometers).

Ganymede, a behemoth of an icy moon in Jupiter's orbit, was captured in vivid detail by NASA's Juno spacecraft on June 7. It was the closest flyby of the moon ever. Photos shared by NASA Tuesday ...

While Ganymede hasn’t yet been observed spewing plumes of water vapor like Saturn’s moon Enceladus, Jupiter’s largest moon is most likely hiding an enormous saltwater ocean.

A new study revealed that a massive asteroid may have hit Jupiter’s moon Ganymede about 4 billion years ago, shifting the moon on its axis.

Scientists have a new map -- the best created so far -- of the largest moon in our solar system, Ganymede, and it is both beautiful and revealing.

A new study revealed that a massive asteroid may have hit Jupiter’s moon Ganymede about 4 billion years ago, shifting the moon on its axis.