
Pluto Hulk-like Moon Charon: A Possible Ancient Ocean?
Images from NASA New Horizons mission suggest that Pluto largest moon, Charon, once had a subsurface ocean that has long since frozen and expanded, pushing out on the moon surface.

Images from NASA New Horizons mission suggest that Pluto largest moon, Charon, once had a subsurface ocean that has long since frozen and expanded, pushing out on the moon surface.