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Home The aurora at Saturn’s southern pole is visible in this false-color image. Blue represents the aurora; red-orange is reflected sunlight. The image was gathered by Cassini’s ultraviolet imaging spectrograph (UVIS) on June 21, 2005. (NASA/JPL/University of Colorado) The aurora at Saturn's southern pole is visible in this false-color image. Blue represents the aurora; red-orange is reflected sunlight. The image was gathered by Cassini's ultraviolet imaging spectrograph (UVIS) on June 21, 2005. (NASA/JPL/University of Colorado)

The aurora at Saturn’s southern pole is visible in this false-color image. Blue represents the aurora; red-orange is reflected sunlight. The image was gathered by Cassini’s ultraviolet imaging spectrograph (UVIS) on June 21, 2005. (NASA/JPL/University of Colorado)

The aurora at Saturn's southern pole is visible in this false-color image. Blue represents the aurora; red-orange is reflected sunlight. The image was gathered by Cassini's ultraviolet imaging spectrograph (UVIS) on June 21, 2005. (NASA/JPL/University of Colorado)

The aurora at Saturn’s southern pole is visible in this false-color image. Blue represents the aurora; red-orange is reflected sunlight. The image was gathered by Cassini’s ultraviolet imaging spectrograph (UVIS) on June 21, 2005. (NASA/JPL/University of Colorado)

This false-color composite image shows auroras (depicted in green) above the cloud tops of Saturn’s south pole. The 65 observations used here were captured by Cassini’s visual and infrared mapping spectrometer on Nov. 1, 2008. (NASA/JPL/ASI/University of Arizona/University of Leicester)