Andromeda: The Cannibal Galaxy

Andromeda: The Cannibal Galaxy

The Andromeda galaxy, which borders our own Milky Way, may have expanded through acts of "cannibalism." In a new mapping of Andromeda, researchers found evidence of stars that were the "remnants of dwarf galaxies," like Triangulum, which grazed Andromeda around 2.5 billion years ago. More at BBC News and New Scientist.

Andromeda: The Cannibal Galaxy – Photos – Coast to Coast AM

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