SMRTR Science & EngineeringJun 3, 2025Ars Technica

Milky Way galaxy might not collide with Andromeda after all

SMRTR summary

New analysis challenges the long-held belief that the Milky Way and Andromeda galaxies will collide in 5 billion years. Using data from Hubble and Gaia telescopes, researchers conducted 100,000 simulations, finding only a 50% chance of collision within 10 billion years. This revised prediction alters our understanding of the galaxy's future, with implications for long-term cosmic evolution studies.

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