Cassini finds hints of activity at Saturn moon Dione
Wednesday, May 29, 2013 - 21:30
in Astronomy & Space
From a distance, most of the Saturnian moon Dione resembles a bland cueball. Thanks to close-up images of a 500-mile-long (800-kilometer-long) mountain on the moon from NASA's Cassini spacecraft, scientists have found more evidence for the idea that Dione was likely active in the past. It could still be active now.