Underneath its shell of ice, the globe-spanning ocean of Enceladus isn't sitting still. Instead, it might possibly host massive ocean…
At first glance, Jupiter's moon Europa doesn't seem much like Earth. It's a moon, not a planet, and it's covered…
It seems unlikely that an ocean could persist on a world that never gets closer than 30 astronomical units from…
Apparent uncertainty in the budget for the Europa Clipper mission could be bad news for its proponents.