Composite image of Saturn shows the entire planet, including the rings as seen by NASA's Cassini spacecraft from the south. The green glow represents aurora lights. ... more 
Composite image of Saturn shows the entire planet, including the rings as seen by NASA's Cassini spacecraft from the south. The green glow represents aurora lights. less 
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SPACE.com | Photo By NASA/JPL/University of Leicester/University of Arizona
Tue, Apr 23, 2013 10:00 AM EDT