Ganymede captured by NASA’s Juno spacecraft during a June 7 flyby of Jupiter’s giant moon. NASA/JPL-Caltech/SwRI NASA’s Juno spacecraft this week beamed back an exquisite image (above) of Ganymede, ...

Jupiter's largest moon might be stacked with multiple layers of oceans and ice. The largest moon in our solar system, a companion to Jupiter named Ganymede, might have ice and oceans stacked up in ...

NASA's Juno spacecraft captured vivid images of Jupiter's moon Ganymede during a flyby on June 7. Credit: NASA/JPL-Caltech/SwRI/MSSS Ganymede, a behemoth of an icy moon in Jupiter's orbit, was ...

NASA has detected water vapor for the very first time in the atmosphere of Ganymede — not only Jupiter's largest moon, but the largest moon in our entire solar system. Researchers made the discovery ...