Saturn's Rings and Moons | NASA Planetary Sciences

Explore the rings and moons of Saturn through images from the Cassini spacecraft. Saturn's rings were discovered in 1610 by Galileo Galilei, although he did not see enough detail to know what they were. In 2004, the Cassini spacecraft began capturing unprecedented images of Saturn's atmosphere and the complex structure of its rings and moons. It is hypothesized that the rings formed when Saturn swallowed one of its moons. The many moons of Saturn interact with the ring particles, shaping and clearing lanes in the rings. Saturn has dozens of moons with varying characteristics, but Titan and Enceladus are the most thoroughly studied. CREDITS: License:

LicenseCustom License

More videos by this producer

ScienceCasts: Listening to the Stars

Visit for more. Deep in the heart of California’s Owens Valley, a strange-looking telescope stands in the desert landscape listening for echos of distant stars. Click here to see more videos:

ScienceCasts: Space Coffee

Advances in the understanding of how fluids behave in low gravity is key to spacecraft operations. A long-awaited spin-off is an excellent cup of coffee in space. For updates from the International Space Station go to Visit for more. Click here