Strange x-ray pulses hint at a surprisingly long-lived white dwarf orbiting precariously close to a supermassive black hole ...

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

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

The weird outbursts of a distant supermassive black hole may be caused by a death-defying white dwarf walking a cosmic tight ...

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 ...

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

A strange black hole is making scientists scratch their heads.

MIT 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.

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

International teams of astronomers monitoring a supermassive black hole in the heart of a distant galaxy have detected ...

Black holes themselves emit no light, but the supermassive black holes at the centers of galaxies are often surrounded by ...