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Rare dead quasar found in nearby galaxy


One of the universe’s brightest lights, a black hole-driven quasar in a nearby galaxy, recently shut off like a snuffed candle.

New observations of a bizarre cloud of glowing gas, and a nearby galaxy that illuminates it, show that the galaxy’s central light went dim sometime in the last 70,000 years. The finding could reveal how supermassive black holes help galaxies grow and evolve.

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