Earlier this year, researchers discovered that a vast liquid ocean lurks beneath the icy shell of Saturn's tiny moon, Mimas. Now the same team may have discovered how it was created. New research ...

The small moon, which is known as Saturn's "Death Star" moon because of its distinctive crater (not visible in the above image), can be seen floating above the planet's rings. SEE ALSO ...

Anyone up for some interplanetary mountaineering? New close-up photos of Saturn's "Death Star moon" Mimas show the world's untouched, craggy cliffs and craters calling out for exploration.