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Wednesday, November 11, 2009 |
Wednesday, November 11, 2009 |
Photo: Colossal Four-Galaxy Collision DiscoveredScientists say the collision is one of the biggest ever observed and will eventually form a new galaxy ten times the size of the Milky Way. Illustration courtesy NASA/JPL-Caltech/Harvard-Smithsonian CfA
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ADVERTISEMENTNATIONAL GEOGRAPHIC'S PHOTO OF THE DAY |
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