Is there life on Mimas? Scientists hope so

Death Star look-a-like: Mimas, one of Saturn's 62 moons (though only 53 are named), bears a passing resemblance to the weapon of mass destruction featured in the "Star Wars" movies.

Saturn’s battered moon Mimas may have a thin global ocean buried miles beneath its icy surface.

An underground ocean is one of two explanations for why the moon 250km diameter wobbles as it orbits around Saturn, scientists using data from NASA’s Cassini spacecraft said. The other possibility is that Mimas has an oblong or rugby ball-shaped core. Follow-up measurements should provide more answers, scientists say.