Our Nearest Galactic Neighbor Engaged in ‘Cannibalism’ Again And Again, Study Finds : ScienceAlert
There's a growing body of evidence that galaxies grow large by merging with other galaxies.Telescopes like the Hubble have captured dozens of interacting galaxies, including well-known ones like Arp 248.The Andromeda galaxy is the nearest large galaxy to the Milky Way, and a new study shows that our neighbor has consumed other galaxies in two distinct epochs."A few years ago, we discovered that in the far outskirts of Andromeda, there was a sign in the objects orbiting it that the galaxy hadn't been grazing, but it had…