The middle-sized icy saturnian satellite Rhea may be one of the most heavily cratered objects in the solar system. The largest crater in this scene, Ormazd (upper right), is 130 kilometers across and roughly 5 kilometers deep. Compare the surface of Rhea with that of Uranus’ satellite Miranda (slide #37), which is less than half the size of Rhea. No smooth or resurfaced areas are apparent on Rhea, even in this stereo view. If there has ever been significant volcanic activity on Rhea similar to that on Enceladus, Dione, or Miranda, it must have occurred very early in Rhea's history and has been destroyed by the formation of later impact craters.
1 images 34950.47, 34952.57.