Radio signals reveal secrets of hidden supermassive black holes
An artist’s impression of a red quasar. Red quasars are obscured by gas and dust that can be blown away by the outflow from the supermassive black hole, eventually revealing the typical blue quasar. Authors: S. Munro and L. Klindt. License: Attribution (CC BY 4.0) Astronomers have found a striking correlation between the amount … Read more