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This image provides three different perspectives on GRB150101B, the first known cosmic analogue of GW170817, the gravitational wave event discovered in 2017. At center, an image from the Hubble Space Telescope shows the galaxy where GRB150101B took place. At top right, two X-ray images from NASA's Chandra X-ray observatory show the event as it appeared on January 9, 2015 (left), with a jet visible below and to the left; and a month later, on February 10, 2015 (right), as the jet faded away. The bright X-ray spot is the galaxy's nucleus. Credit: NASA/CXC

All in the family: Kin of gravitational wave source discovered

On October 16, 2017, a universal group of astronomers and physicists energetically revealed the first simulations detection of light and gravitational waves from a...