Saturn's C Ring (IMAGE) University of California - Santa Cruz Caption Saturn's C ring is home to a surprisingly rich array of structures and textures. Much of the structure seen in the outer portions of Saturn's rings is the result of gravitational perturbations on ring particles by moons of Saturn, but some of the features in the rings are due to the vibrations of the planet itself. Credit NASA/JPL-Caltech/Space Science Institute Usage Restrictions For use only with news coverage of this research License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.