土卫三十五与土星环
2019 November 3 Daphnis and the Rings of Saturn Image Credit: NASA, JPL-Caltech, Space Science Institute, Cassini Explanation: What’s happening to the rings of Saturn? A little moon making big waves. The moon is 8-kilometer Daphnis and it is making waves in the Keeler Gap of Saturn’s rings using just its gravity — as it bobs up and down, in...