Astronomers capture largest cosmic explosion ever witnessed

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An artist's impression of a black hole sucking in a cloud of hydrogen gas. (Image credit: John A. Paice)

Astronomers have spotted a giant explosion releasing over 100 times more energy than the sun will release across its entire lifetime. A monster black hole is likely to blame.

The explosive event labeled AT2021lwx was observed to be ten times brighter than any known supernova, the explosions that occur as massive stars die. And whereas supernova explosions only last a few months, this explosive event has been raging for at least three years.