Astronomers recently observed the largest cosmic explosion ever seen, believed to be caused by supermassive blackhole devouring a large cloud of gas.
Astronomers recently observed the largest cosmic explosion ever seen, far brighter than a supernova and lasting for much longer too. They believe that the outpouring of light is due to a supermassive black hole devouring a large cloud of gas.
“We came upon this by chance, as it was flagged by our search algorithm when we were searching for a type of supernova,” said lead researcher Philip Wiseman of the University of Southampton in a statement. “Most supernovae and tidal disruption events only last for a couple of months before fading away. For something to be bright for two plus years was immediately very unusual.”
While bright events involving the supermassive black holes at the heart of galaxies typically show brightness rising and falling, that wasn’t the case here. “Looking back over a decade there was no detection of AT2021lwx, then it suddenly appeared as one of the most luminous things in the universe, which is unprecedented,” said co-author Mark Sullivan.
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