Ganymede is a moon that wears its scars with the resignation of an old veteran. Its furrowed crust speaks of harder times, its tilt like a limp from an injury it'd prefer to never speak of again.

Although both Voyager spacecraft as well as the Galileo probe took images of Ganymede in the late 1900s, many areas of the moon have not yet been imaged with sufficient resolution, limiting ...

On this date, Jan. 26, 1981, NASA Voyager 1 probe discovers Saturn’s moon, Epimetheus. Saturn would be the last planet Voyager 1 would visit before beginning its ongoing journey out of the solar ...

Jupiter's largest moon Ganymede is generating "killer" waves of electrons that astronomers say could damage spacecraft going on future missions. These electromagnetic waves can be found all around ...

NASA announced that it has evidence that Jupiter’s moon Ganymede, the largest moon in our solar system, has a vast ocean lurking underneath its icy crust. WSJ's Monika Auger reports. Photo ...