A Rhea View


Here’s an amazingly detailed view of the extensively cratered surface of Rhea, Saturn’s second-largest moon, taken during a particularly close encounter by Cassini on October 13, 2009.

About 950 miles wide Rhea is less than a third the size of Titan, Saturn’s largest moon. Unlike Titan, Rhea has no atmosphere at all to speak of and is composed mostly of water ice, which behaves like solid rock in the frigid temperatures found at those distances from the sun.

Raw image: NASA/JPL/Space Science Institute

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