Narrow, Curious Arc on Rhea's Surface
Date: 9 Mar 2013

This image was taken on 9 March 2013, and received on Earth 10 March 2013, by NASA's Cassini spacecraft. The camera was pointing toward Rhea at approximately 2,779 km (1,727 miles) away, and the image was taken using the CL1 and CL2 filters. This image has not been validated or calibrated.

Scientists are still trying to understand some of the curious features they see in this image, including a curving, narrow fracture or graben, which is a block of ground lower than its surroundings and bordered by cliffs on either side. This feature looks remarkably recent, cutting most of the craters it crosses, with only a few small craters superimposed.

Last Update: 11 Mar 2013 (AMB)

Credit: NASA/JPL/Space Science Institute