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Discovered: Milky Way's long-lost galactic sibling

23 Jul 2018, 15:00 UTC
Discovered: Milky Way's long-lost galactic sibling NASA/JPL-Caltech

TheĀ Milky Way once had a massive galactic sibling that was shredded and consumed by our closest neighbour, Andromeda, scientists have discovered.

The dramatic sequence of events, dating back 2bn years, was reconstructed through a detailed survey of stars in the faint halo surrounding the Andromeda galaxy

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