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A dark-matter galaxy just buzzed the Milky Ways edge
2016-01-13 18:30:16| Extremetech
For the past ten years, astronomers have puzzled over cosmic ripples in the structure of the Milky Way that didn't have a known cause. Thanks to a trio of pulsing stars, we now suspect a dwarf galaxy made of dark matter swung through our galactic neighborhood 500 million years ago -- with results we can still see today.
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Category:Information Technology
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