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

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

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

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

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 ...

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

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

A strange black hole is making scientists scratch their heads.

A mysterious black hole has started behaving even more strangely, scientists have said. The supermassive black hole has been ...

One supermassive black hole has kept astronomers glued to their scopes for the last several years. First came a surprise ...

A large international team of scientists observed a rare event in real time: a dramatic increase in radio emission and the ...