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

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

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

"This is how you solve the universe-breaking problem." ...

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 ...

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

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

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

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 ...

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 ...