Solar System's Largest Moon Ganymede May Have 'Club Sandwich' Oceans

Illustration depicting the “club sandwich” layers of oceans and ice in Ganymede’s interior. Image Credit: NASA / JPL-Caltech

Europa and Enceladus, for good reason, have captured the attention and imagination of those searching for evidence of life elsewhere in our Solar System. Both moons are now thought to have subsurface oceans with conditions […]

Where Are the Best Windows Into Europa's Interior?

This graphic of Jupiter’s moon Europa maps a relationship between the amount of energy deposited onto the moon from charged-particle bombardment and the chemical contents of ice deposits on the surface in five areas of the moon (labeled A through E). Image Credit: NASA/JPL-Caltech/Univ. of Ariz./JHUAPL/Univ. of Colo.

The surface of Jupiter’s moon […]