In 2015, the Hubble Space Telescope found evidence that Ganymede hosts an underground saltwater ocean 60 miles deep, almost 10 times deeper than the oceans on our planet. The European Space Agency ...

At Callisto, during 21 flybys JUICE will study its cratered surface, look for evidence of a subsurface ocean and change the angle of its orbit around Jupiter to help it get into orbit of Ganymede.

The measured heights of the tidal peaks in the ice crust, which occur periodically during Ganymede's orbit around Jupiter, will provide clues as to whether there is a liquid ocean beneath the outer ...

A colossal asteroid, estimated to be 20 times larger than the one that led to the extinction of the dinosaurs on Earth, has left a permanent mark on Jupiter’s largest moon, Ganymede. This ...

This effect is particularly interesting in the case of large icy moons like Ganymede, Callisto, and Titan, but also for cold ocean exoplanets like Trappist 1e-g and water-rich rogue exoplanets." ...