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'This doesn't appear in computer simulations': Hubble maps chaotic history of Andromeda galaxy, and it's nothing like scientists expected

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A new study by the Hubble Space Telescope provides the first -ever bird's-eye view of all known dwarf galaxies orbiting the Andromeda galaxy.

The results reveal that over billions of years , Andromeda and its family of dwarf galaxies have experienced markedly chaotic interactions.

At about 2.5 million light-years away, Andromeda is the closest major galaxy to our own.