Researchers at the University of Illinois Urbana-Champaign and University of Chicago have proposed using gravitational waves from distant black hole mergers to measure the Hubble constant and resolve conflicting measurements of the universe's expansion rate. The new method, accepted for publication in Physical Review Letters, analyzes the gravitational-wave background created by countless faint cosmic events to improve precision in determining how fast the universe is expanding.
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Researchers at the University of Illinois Urbana-Champaign and University of Chicago have proposed using gravitational waves from distant black hole mergers to measure the Hubble constant and resolve conflicting measurements of the universe's expansion rate. The new method, accepted for publication in Physical Review Letters, analyzes the gravitational-wave background created by countless faint cosmic events to improve precision in determining how fast the universe is expanding.