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When will the Andromeda Galaxy Collide with the Milky Way Galaxy?

-- | April 1, 2016

Question: Do you have an accurate estimate on when Andromeda will be colliding with our Milky Way galaxy? — Charlie

Answer: About 4 billion years. There is a nice simulation of this collision that you should check-out. Gives one a nice idea as to what this collision will look like.

Jeff Mangum

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