Double Black Hole inside a nearby Quasar
By using NASA’s Hubble Space Telescope, astronomers have found that the nearest galaxy to Earth (Mrk 231) hosting a quasar, is powered by two central black holes
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Gigantic Black Hole 12 billion times more massive than our Sun
A gigantic black hole at the heart of the brightest quasar in the early universe discovered, 12 billion times more massive than our sun.