sending the moon into a stable orbit. Neither would have lost too much of its original material in the process. The incident could have created enough heat for Pluto to form an underground ocean ...

Mimas' thick, icy exterior, however, has never indicated the existence of an ocean. Researchers suggest this is because Mimas' ocean dwells 12 to 18 miles (20 to 30 kilometers) below the moon's 15 ...

Planetary scientists don’t care about Mimas, Saturn’s smallest moon. Sure, its massive Herschel ... station is also evidence that it may be an ocean world capable of supporting life.