Light from the celestial object, which is 500tn times brighter than our sun, travelled for more than 12bn years to reach Earth
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The brightest known object in the universe, a quasar 500tn times brighter than our sun, was “hiding in plain sight”, researchers say.
Australian scientists spotted a quasar powered by the fastest growing black hole ever discovered. Its mass is about 17bn times that of our solar system’s sun, and it devours the equivalent of a sun a day.
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