Astronomers using the Subaru Telescope have discovered 83 quasars in the distant Universe, from a time when the Universe was less than 10% of its present age. An artist’s impression of a quasar. Image credit: Yoshiki Matsuoka. Supermassive black holes are some of the most powerful objects in the Universe and are found in the centers of galaxies. They can be millions or even billions of times more massive than the Sun. While they are prevalent today,...
