Scientists have long suspected that the Milky Way and Andromeda galaxies are on a collision course, but now, thanks to new data from the European Space Agency's Gaia satellite, researchers finally know how fast and at what angles the two galactic bodies are approaching impact.

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Scientists have long suspected that the Milky Way and Andromeda galaxies are on a collision course, but now, thanks to new data from the European Space Agency's Gaia satellite, researchers finally know how fast and at what angles the two galactic bodies are approaching impact.