The Milky Way could contain thousands of stars from another galaxy

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The Milky Way could contain thousands of stars from another galaxy
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We know there are stars moving fast enough to escape the Milky Way, so the same is probably true of other galaxies. Now, simulations suggest there could be almost 4000 stars from the Andromeda galaxy in the Milky Way today

The Milky Way might contain thousands of stars that were expelled from Andromeda, our closest galactic neighbour – and may even have brought planets with them.

, which raises the question of whether similarly speedy stars could exist in, and potentially leave, other galaxies as well.at the Karlsruhe Institute of Technology in Germany and his colleagues have calculated that the Milky Way …

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