A team of astronomers made a groundbreaking discovery of six closely bound galaxies being powered by a single supermassive black hole with a mass greater than a billion solar masses at a redshift of 6.31. Out of the six galaxies, four are massive star-forming galaxies and the other two are comparatively low mass galaxies. This is the first discovery of a galactic overdensity around a supermassive black hole in the first billion years of the Universe and confirms the idea that the most distant and massive black holes form and grow within massive dark matter halos in large scale structures. MS 0735.6+7421: Six objects ranging in location from within the Milky Way to billions of light-years away: Source: Chandra One of the major challenges in astronomy is to explain the existence of supermassive black holes powering luminous quasars at high redshifts. A quasar is an extremely bright active galactic nucleus fueled by a supermassive black hole. Quasars are typical of the size of...
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