It orbits Jupiter, it's bigger than Mercury, and it has a subsurface ocean.
The average ocean depth on Earth is 3.7 km.
The ocean within Ganymede is as much as NINE HUNDRED km deep.
It orbits Jupiter, it's bigger than Mercury, and it has a subsurface ocean.
The average ocean depth on Earth is 3.7 km.
The ocean within Ganymede is as much as NINE HUNDRED km deep.