(IMAGE) Kobe University Caption (Left) Saturn main rings are shown (NASA/PIA06077). (Center) The narrow F ring located just outside of the outer edge of the main rings. Two satellites sandwiching the F ring slightly above and to the left of the center of the image are the shepherd satellites Prometheus (inner orbit) and Pandora (outer orbit) (NASA/PIA12717). (Right) Closer image of the F ring and its shepherd satellites Prometheus (inner orbit) and Pandora (outer orbit) (NASA/PIA07712). In the center and right images, Saturn is beyond the images towards the right. Credit NASA / JPL / Space Science Institute Usage Restrictions None 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.