The Milky Way’s long-lost sibling finally found
ANN ARBOR—Scientists at the University of Michigan have deduced that the Andromeda galaxy, our closest large galactic neighbor, shredded and cannibalized a massive galaxy two billion years ago. Even though it was mostly shredded, this massive galaxy left behind a rich trail of evidence: an almost invisible halo of stars larger than the Andromeda galaxy … Continue reading The Milky Way’s long-lost sibling finally found
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