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Artist's rendering of cosmic collision involving two objects whose combined mass was at least twice that of our Moon. Discovered using the Spitzer Space Telescope in the planetary system of a star called HD 172555 100 light-years away.

  Image 55 of 74
  20091202144508965
Tuesday, September 22 2009 @ 11:03 am EDT
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Uploaded By: dgrosvold  

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