Galaxis October 2011

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PHOTO: NASA/JPL/University of Colorado/Central Arizona College

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PHOTO: NASA/JPL/SPACE SCIENCE INSTITUTE

assini created images above of a “glowing patch of ultraviolet light near Saturn’s north pole that marks the presence of an electrical circuit that connects Saturn with its moon Enceladus,” reports NASA. The glowing is caused by energetic electrons zooming down into the planet’s atmosphere. The colors in the image above represent the brightness of the extreme ultraviolet emissions. Black/blue are the lowest-emission areas, and yellow/ white are the highest emission areas. The size of this patch of light is about the size of California.

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n 2010, Cassini took this picture at right of Saturn’s moon Dione, showing a region’s fractured surface known as “wispy terrain.” Dione is the 15th largest moon in the solar system and is composed mostly of water ice. Dione had to be on the go-to list for the Cassini probe; the moon was discovered by the Italian/French astronomer G Giovanni Domenico Cassini in 1684. weimar.ws Galaxis

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