A black hole infamous for strange features has once again baffled astronomers, this time with rapid X-ray flashes. What could ...

The newly discovered "blazar," which has a mass equal to 700 million suns, is the oldest of its kind ever seen and changes ...

Active galactic nuclei are supermassive black holes at the center of certain galaxies. As matter falls into these black holes ...

Astronomers detected X-ray flashes from the black hole that increased in frequency from one every 18 minutes to one every ...

MIT astronomers have been captivated by the strange behaviors of a supermassive black located 270 million light-years away, ...

Galactic nuclei images reveal how supermassive black holes interact with their surroundings using infrared telescopes.

A remarkable black hole, located 270 million light-years away in the Draco constellation, has become the center of ...

The black hole, with an official name of 1ES 1927+654, is located in the distant constellation Draco. Astronomers have been monitoring the black hole for years, primarily since 2018 when the mass ...

In 2018, a galaxy about 270 million light-years away from Earth exhibited a major increase in activity. It quieted down again ...

Supermassive black holes with powerful jets of high-energy particles, pointing directly at Earth are called blazars.

The first black hole that astronomers observed "turning off" just turned back on, releasing jets of hot gas into the cosmos.

Scientists have detected emanating from the nucleus of a galaxy relatively close to our Milky Way flashes of X-rays gradually ...