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100 Billion Alien Planets Space Wallpaper

100 Billion Alien Planets 1920
Data from NASA's Kepler mission finds evidence for at least 100 billion planets in our galaxy. Image released January 3, 2013.
(Image: © NASA/JPL-Caltech)

Data from NASA's Kepler mission finds evidence for at least 100 billion planets in our galaxy. This cool space wallpaper was released January 3, 2013.

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