Saturn's Moon Daphnis Creates Spectacular Ripples in Saturn's Rings

When I saw the image above, I literally gasped. It's an amazing photo, showing the small moon Daphnis inside a gap in Saturn's rings. The beauty of this shot is apparent, but the science behind it is even cooler. Allow me to explain. On Nov. 30 of 2016, the Cassini spacecraft orbiting Saturn took on a new and risky mission. It began a series of orbits that are taking it over the planet's north pole and then down just outside the main rings. In mid-January 2017 it dipped through the ring plane on...