An ancient, fast-feeding quasar is breaking the rules of how black holes consume matter and generate galaxy-shaping jets.

Astronomers have confirmed the first isolated stellar-mass black hole drifting through the Milky Way, located roughly 5,000 ...

Particle never before seen on Earth detected; it could come from a primordial black hole and the origin of the universe.

Using the Subaru Telescope on Mauna Kea, an international collaboration of astronomers led by scientists at Waseda University and Tohoku University of Japan have discovered an extraordinary quasar in ...

Study led by University of Bonn finds galaxy clusters contain about twice as much normal matter as previously estimated, based on recalculated stellar populations and survey data.