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Last updated on June 19, 2013 at 17:28 EDT

Animation: Milky Way Collides With Andromeda Galaxy

June 6, 2012

This animation depicts the collision between our Milky Way galaxy and the Andromeda galaxy. Hubble Space Telescope observations indicate that the two galaxies, pulled together by their mutual gravity, will crash together about 4 billion years from now.  credit:  NASA