Early-universe quasar neighborhoods are indeed cluttered

Early-universe quasar neighborhoods are indeed cluttered

Quasars are the most luminous objects in the Universe and are powered by material accreting onto supermassive black holes at the centers of galaxies. Studies have shown that early-Universe quasars have black holes so massive that they must have been swallowing gas at very high rates, leading most astronomers to believe that these quasars formed … Read more