(IMAGE) Kobe University Caption In this simulation, two satellites with dense cores collide at the current location of the F ring. The collision does not destroy the cores, which become two shepherd satellites, and the dispersed particles distributed in between the two satellites form the F ring (The original version of this figure is from the paper published in Nature Geoscience). Credit 2004- Kobe University. All Rights Reserved 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.