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This artist's impression shows hot gas orbiting in a disk around a rapidly-spinning black hole. The elongated spot depicts an X-ray-bright region in the disk, which allows the spin of the black hole to be estimated. Image: NASA/CXC/M. Weiss

X-ray pulse detected near event horizon as black hole devours star

On Nov. 22, 2014, stargazers detected an uncommon vent in the night sky: A supermassive black hole at the center of a galaxy, almost...
Artist's impression of an inner accretion flow and a jet from a supermassive black hole when it is actively feeding, for example, from a star that it recent tore apart.

Scientists identified radio echoes of a black hole feeding on a star

On Nov. 11, 2014, a worldwide system of telescopes grabbed signals from 300 million light years away that was made by a tidal disruption...