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Submission + - Milky Way May Have Dark Matter Satellite Galaxies (nationalgeographic.com) 2

rubycodez writes: Berkeley astronomer Sukanya Chakrabarti has detected perturbations in the gases surrounding our Milky Way and concludes there is a satellite "Galaxy X" 250,000 light years away that is mostly dark matter, but that may contain dwarf stars visible in infrared. She expects many more such dark matter satellites to the Milky Way to be discovered using her technique.
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Milky Way May Have Dark Matter Satellite Galaxies

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