An Object 90 Miles Wide May Have Struck Jupiter’s Planet-Sized Moon Ganymede Say Scientists - Forbes

Marks on Ganymede's surface appear to be in concentric circles. Are they the leftovers of a massive impact?

Jupiter planet and satellite Ganymede in the outer space. 3d render getty The troughs that dominate the surface of the solar systems largest moon Ganymede may have been caused by a collision with a… [+2284 chars]

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