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Cassini Spacecraft Photos Show Saturn's 'Blue Moon' in All Its GloryCredit: NASA/JPL/SSIA false-color view of Saturn's moon Rhea captured by NASA's Cassini spacecraft on March 2, 2010. This image shows the side of the moon that always faces the planet. Ultraviolet, green and infrared images were combined into a single picture that isolates and maps regional color differences. This "color map" was then superimposed over a clear-filter image that preserves the relative brightness across the body.
False color image from NASA of Saturn's moon, Rhea. Click to see 10 spectacular moons in our solar system
Nasa's Cassini spacecraft image of a false colored moon Rhea. One of Saturn's moons.