Besides stars, the United States Navy uses quasars as beacons. Quasars are distant galaxies with supermassive black holes, surrounded by ... X-Ray Flashes from a Nearby Supermassive Black Hole ...

Some monstrous black holes from the primordial Universe are capable of taking naps, as if after a heavy feast. This is not ...

An undiscovered population of ancient black holes may be lurking throughout the universe. These bottomless cosmic pits would have a lot in common with more familiar black holes; in some cases ...

A supermassive black hole surrounded by gas and dust as seen in infrared light (top left), visible light (top right), and low- and high-energy X-rays (bottom left, right). Image: NASA/JPL-Caltech ...

International teams of astronomers monitoring a supermassive black hole in the heart of a distant galaxy have detected features never seen before using data from NASA missions and other facilities.

"The hunt for elusive intermediate-mass black holes continues." New research may have delivered bad news for scientists who thought they had discovered a "missing link" black hole in a dense Milky ...

Strange vibrations emanating from a supermassive black hole appear to be growing more frequent and they could be caused by a white dwarf star orbiting perilously close to its event horizon.