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NASA Universe on Twitter: "Galaxy collisions are the ultimate in slow-motion stunts. ⏱️ When a pair of galaxies encounters each other, it takes 1-2 billion years for them to merge and settle
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The Milky Way Is Destined to Collide with Andromeda, and We Know What It Will Look Like - Scientific American
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Stream of stars in Andromeda satellite galaxy shows cosmic collision – Niels Bohr Institute - University of Copenhagen
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The Milky Way Is Destined to Collide with Andromeda, and We Know What It Will Look Like - Scientific American
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