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Cosmic inflation: Dust finally settles on BICEP2 results
Cosmic inflation: Dust finally settles on BICEP2 results

Reports of evidence of cosmic inflation may have been, well, overblown. When the BICEP2 team announced last year that they had found signs of cosmic inflation, the universe’s powerful growth spurt that had been predicted but that had never been directly detected, it was seen as a potentially major breakthrough in cosmology. But now, a joint team that includes the BICEP2 researchers has found that there is no clear evidence of the primordial gravitational waves that signaled this enormous growth spurt, and that much of the signal was clearly caused by dust. “I think the conclusion is that the BICEP2 team misinterpreted their results,” said David Spergel, a Princeton...

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