Hungry black hole 'switches on' as astronomers watch in surprise
Astronomers have witnessed one of the most dramatic "switching on" events ever seen as a distant supermassive black hole began greedily feasting on its surrounding matter.
TroibNews 
Astronomers have witnessed one of the most dramatic "switching on" events ever seen as a distant supermassive black hole began greedily feasting on its surrounding matter.
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