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Episode 402: Milky Way and Andromeda to Collide

Play Jul 5•4:27

Our galaxy, the Milky Way, and our closest galactic neighbor, Andromeda, are closing in on each other due to their mutual gravitational attraction. New information from the Hubble Space Telescope tells us that collision is about 4 billion years in our future. HubbleSite news release on the discovery National Optical Astronomy Observatory on Andromeda How Stuff Works on the Milky Way

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