The James Webb Space Telescope has captured a mid-infrared picture of Sagittarius A*, filling in a long-standing gap in ...
A strange black hole is making scientists scratch their heads.
The dense stellar remnant would, if confirmed, be the closest known object to any black hole, according to preliminary ...
A mysterious black hole has started behaving even more strangely, scientists have said. The supermassive black hole has been ...
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 ...
In 2018, a galaxy about 270 million light-years away from Earth exhibited a major increase in activity. It quieted down again ...
The newly discovered "blazar," which has a mass equal to 700 million suns, is the oldest of its kind ever seen and changes ...