Quasars are some of the brightest and most powerful objects in the universe, and now a new study has revealed that the same quasars can be used to observe the beating of a heart. In a study led by the University of California, Berkeley, researchers have discovered a way to use X-ray quasars to measure the heartbeat of distant stars. This is a significant breakthrough, as it allows scientists to measure the heartbeats of stars that are too far away to be observed with traditional methods. By using the X-rays from quasars, astronomers are able to measure the pulse of stars that are billions of light years away. This is a major step forward in our understanding of the universe and how stars work.

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source: Phys.org