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ScienceCasts: Andromeda vs. the Milky Way: Astronomers Predict a Titanic Collision

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Published on Jun 8, 2012

Visit http://science.nasa.gov/ for more.

Astronomers no longer have any doubt: Our Milky Way Galaxy will have a head-on collision with Andromeda. Fortunately, they say, Earth will survive when the two great star systems meet 4 billions years from now.

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