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Dance of Saturn's Auroras
Dance of Saturn's Auroras (click to enlarge)
 
 

Dance of Saturn's Auroras

Ultraviolet and infrared images from NASA's Cassini spacecraft and Hubble Space Telescope show active and quiet auroras at Saturn's north and south poles.

Saturn's auroras glow when energetic electrons dive into the planet's atmosphere and collide with hydrogen molecules. Sometimes a blast of fast solar wind, composed of mostly electrons and protons, creates an active aurora at Saturn, as occurred on 5 April and 20 May 2013.

Additional Image Credit: NASA/ESA/University of Leicester and NASA/JPL-Caltech/University of Arizona/Lancaster University

Credit: NASA/JPL-Caltech/University of Colorado/Central Arizona College



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Last Updated: 11 Feb 2014