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

Some 275 million light-years from the Milky Way lies a true cosmic mystery. There, in the heart of a galaxy named 1ES ...

Astronomers have detected a mid-infrared flare from the supermassive black hole at the heart of the Milky Way galaxy for the ...

Sgr A*, at the heart of the Milky Way and clocking in at 4.3 million solar masses, is the closest supermassive black hole we have access to. It's also on the quiescent end of the activity scale, which ...

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

The James Webb Space Telescope has captured a mid-infrared picture of Sagittarius A*, filling in a long-standing gap in ...

In 2018, a galaxy about 270 million light-years away from Earth exhibited a major increase in activity. It quieted down again by 2020 -- only to dramatically increase its output again in 2023. At that ...

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

"For such a faint and unknown target, we were not sure if we would get any data at all — but the strategy worked." ...

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 cosmic mystery surrounding a black hole some 270 million light-years from the Milky Way is deepening. Now, the black hole has once again demonstrated strange features that teams of astronomers ...