Gravitational waves spark hunt for cosmic strings and dark matter

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Gravitational waves spark hunt for cosmic strings and dark matter


The gravitational wave background is felt throughout the universe

JULIAN BAUM/SCIENCE PHOTO LIBRARY

Theoretical physicists have leapt upon the recent discovery of a background hum of gravitational waves permeating the entire universe, with claims that the signal could be a sign of dark matter or even shed new light on the earliest moments of existence.

“There has been a lot of excitement in the high-energy physics community,” says Andrea Mitridate at the California Institute of Technology, who is part of the team that discovered the gravitational wave background. “To be honest, I have had …



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