What Makes the Spirals in Saturn's Rings

Favorite
rings,spirals,Saturn,space
- -
Astronomers know that gravity from Saturn's various moons tug at the planet's rings and make spirals in them. But the catalyst for certain spiral patterns has been difficult to pin down. Now, two Cornell astronomers have determined the source: Saturn itself.
Download the new Cheezburger app for a chance to win a PS4! in Cheezburger 's Hangs on LockerDome