Pictures of Ganymede: Jupiter's moon

 

Jupiter's moon

Jupiter's moon Ganymede is proving to be a fascinating world. Not only is it the largest moon in our solar system, bigger than the planet Mercury and the dwarf planet Pluto, but NASA's Hubble Space Telescope has found the best evidence yet for an underground saltwater ocean on Ganymede.

Ganymede: Facts - NASA Science

NASA Science (.gov)

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