Postcard08: Saturn's Aurora

Astronomers combined ultraviolet images of Saturn's southern polar region with visible-light images of the planet and its rings to make this picture of its aurora. The auroral display appears blue because of the glow of ultraviolet light. Read more about the image here.

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About the Postcard

Release date:22 March 2011, 10:25
Dimensions:12 cm (W) x 17 cm (H)


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