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Astronomers debate an unprecedented “holy cow” outburst

13 Jan 2019, 16:58 UTC
Astronomers debate an unprecedented “holy cow” outburst Sloan Digital Sky Survey

On 16 June 2018, astronomers spotted a celestial outburst in a galaxy 200 million light years away that was unlike any ever seen before. Over three days, the object known as AT2018cow – or “the Cow” for short — emitted a torrent of radiation 10 times brighter than a typical supernova that slowly faded away over several months.

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