These pinpricks of light are actually Jupiter's four largest moons, now known as the Galilean moons: Io, Europa, Ganymede, and Callisto. Many of these celestial orbs are as remarkable as Jupiter ...

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.

Other moons of Jupiter, like Europa and Ganymede, have been considered far more likely candidates. That’s largely down to the fact that those moons play host to subsurface oceans. Given that we ...

Studying Jupiter’s moons: The main goal of the Juice mission is to study Europa, Ganymede, and Callisto. Jupiter is home to almost 100 satellites, but these three moons are believed to house ...

From there, JUICE will focus on Jupiter's and its three icy, ocean-bearing moons Europa, Ganymede and Callisto. Its 10 scientific instruments -- including an optical camera, ice-penetrating radar ...