Titan and Dione hang like Christmas-tree ornaments (NASA/JPL-Caltech/Space Science Institute)
By Paul Sutherland
24 December 2011
NASA's Cassini probe is still busy orbiting Saturn more than eight years after arriving at the ringed planet. This amazing view shows Saturn's third-largest moon Dione through the hazy atmosphere of its largest moon, Titan. It is part of a holiday package of images released by the science team.
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