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Comet ISON's trip back out of the solar system [NASA JPL CalTech]

Comet ISON's journey beyond the sun is just one of the many celestial events in December. Please rate and comment, thanks!
Credit: NASA JPL CalTech
http://jpl.nasa.gov
http://isoncampaign.org
http://solarsystem.nasa.gov/ISON
http://coconutsciencelab.com



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