Andromeda’s collision course with the Milky Way: This Week in Astronomy with Dave Eicher

Don’t look now, but a head-on intergalactic collision is in our distant future. From observations, astronomers know that the Andromeda Galxay (M31) — the nearest large galaxy — is moving toward our own Milky Way. Their mutual gravitational pull makes a galaxy merger inevitable, starting some 4 billion years from now. Such events are common throughoutContinue reading “Andromeda’s collision course with the Milky Way: This Week in Astronomy with Dave Eicher”
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