Astronomers witnessed the last 500 orbits before the neutron stars were swallowed, a process that took far less than a minute and briefly generated as much energy as all the visible light in the observable universe.
"It was just a big quick [gulp], gone," said study co-author Patrick Brady, an astrophysicist at the University of Wisconsin Milwaukee. The black hole "gets a nice dinner of a neutron star and makes itself just a little bit more massive."
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Black hole swallows neutron star before astronomers' eyes | CBC News
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