Stars around the milky way: Cosmic space invaders or victims of galactic eviction?

Stars around the milky way: Cosmic space invaders or victims of galactic eviction?  Science Codex Are the stars surrounding the Milky Way alien space invaders or were they booted out of the galaxy?  International Business Times UK Survey suggests group of Milky Way stars are homegrown, not alien invaders  UPI.comFull coverage

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