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A subtle symphony of ripples in spacetime – astronomers use dead stars to measure gravitational waves produced by ancient black holes

  • Written by Chris Impey, University Distinguished Professor of Astronomy, University of Arizona
A subtle symphony of ripples in spacetime – astronomers use dead stars to measure gravitational waves produced by ancient black holesBlack holes and other massive objects create ripples in spacetime when they merge.Victor de Schwanburg/Science Photo Library via Getty Images

An international team of astronomers has detected a faint signal of gravitational waves reverberating through the universe. By using dead stars as a giant network of gravitational wave detectors, the...

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