Scientists are observing the most energetic flare ever seen emanating from a supermassive black hole, apparently caused when this celestial beast shredded and swallowed a huge star that strayed too close.
The researchers said the flare at its peak was 10 trillion times brighter than the sun. It was unleashed by a black hole roughly 300 million times the mass of the sun residing inside a faraway galaxy, about 11 billion light-years from Earth. A light-year is the distance light travels in a year, 5.9 trillion miles (9.5 trillion km).
Black holes are extraordinarily dense objects with gravitationa
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