New details have been discovered about M87*, the first black hole ever photographed, revealing its plasma, its brightness and ...

"Interestingly, the quasar powering this massive radio jet does not have an extreme black hole mass compared to other quasars ...

Hypervelocity stars (HVSs) were first theorized to exist in the late 1980s. In 2005, the first discoveries were confirmed.

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.

Within those two years, the fluctuation period ramped up from every 18 minutes to just seven minutes – the first-ever measurement of its kind around a supermassive black hole. If this signaled ...

The image of M87*, the supermassive black hole at the center of massive elliptical galaxy M87, changed the world. It was the ...

A massive filament of gas and dust, designated X7, has been elongated during its long approach to the Milky Way galaxy's supermassive black hole Sagittarius A*. See W.M. Keck Observatory imagery of X7 ...

Rapid X-ray oscillations detected near the innermost orbit of a supermassive black hole could indicate the presence of a nearby orbiter such as a white dwarf ...

An international research team has made a groundbreaking discovery about dark matter and its role in shaping galaxies and ...

Here’s how it works. Astronomers have discovered a supermassive black hole that's shooting a giant energy beam directly at Earth. The cosmic juggernaut, which is about as massive as 700 million ...

Astronomers observed flashes of X-rays coming from a supermassive black hole at a steadily increasing clip. The source could be the core of a dead star that's teetering at the black hole's edge.

In this artist’s rendering, a stream of matter trails a white dwarf orbiting within the innermost accretion disk surrounding 1ES 1927+654’s supermassive black hole. Astronomers developed this ...