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Sky Sighting: Is That A Thread Of Dark Matter I Spy?
Dark matter, which surrounds most galaxies, plays a key role in the structure of the cosmos. But we can't see it. Or can we? Recently, astronomers used a remarkable effect predicted by Einstein to spot a very tenuous bridge of dark matter linking two galaxy clusters.
Source: NPR
Posted on:
Thursday, Aug 23, 2012, 7:55am
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