"If Mimas has an ocean, it represents a new class of small, 'stealth' ocean worlds with surfaces that do not betray the ocean's existence." When you purchase through links on our site, we may earn an ...

In the search for oases of liquid water in the solar system, Saturn’s diminutive moon Mimas would not have appeared high on many astronomers’ lists. Its icy crust has a dead, inert surface, pocked ...