Saturn's Wobbly Moon Hints at a Secret Sea

Saturn has a good number of exciting moons circling it. Titan by far its most famous, boasting a mysterious sea of methane, and Enceladus is characterized by its baffling geysers of water vapor and ice particles. However, we may now be adding Mimas to that list of intriguing moons. A new study has revealed that the dull-looking moon is literally shaking with a mystery of its own.