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

Active galaxy 1ES 1927+654, circled, has exhibited extraordinary changes since 2018, when a major outburst occurred in visible, ultraviolet, and X-ray light. The galaxy harbors a central black hole ...

A large international team of scientists has observed a phenomenon that astronomers didn't ever expect to see happen in real ...

According to the research shared at the 245th meeting of the American Astronomical Society in National Harbor, Maryland, the ...

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

A distant supermassive black hole, the mysterious 1ES 1927+654, emits X-ray pulses unlike anything previously recorded, which ...

The observations revealed features never before seen in real time around a supermassive black hole. Among them was the launch ...

Since 2018, we've seen 1ES 1927+654 generate jets in real time and found it may have a lone white dwarf orbiting near the ...

MIT astronomers report a supermassive black hole, 1ES 1927+654, displaying mysteriously accelerating x-ray flashes.

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

The dense stellar remnant would, if confirmed, be the closest known object to any black hole, according to preliminary ...

A supermassive black hole 100 million light-years away is behaving like nothing scientists have ever seen, emitting X-ray flashes at a pace that keeps accelerating. Could a spinning white dwarf be ...