Often found around a star or black hole, we find out what an accretion disc is
13 days after an X-ray emission was detected from a distant galaxy, an almost identical radio signal was detected
Some 290 million years ago, a star much like the Sun wandered too close to the central black hole of its galaxy
Data from NASA’s Swift spacecraft, amongst other telescopes, suggest black holes swallow stellar debris in bursts
The mystery of a rare change in the behaviour of a supermassive black hole at the centre of a distant galaxy has been solved
“It is a bit like twisting a spoon in honey”
It eats amazingly tidily and it’s way too luminous for its mass. That’s two things about the Pinwheel Galaxy’s black hole ULX-1 that could change our understanding of these high gravity objects.