Astronomers discover two giant black holes set to collide in 100 years and detect key signals from Markarian 501.

In a galaxy 500 million light-years away, two supermassive black holes could merge, spreading gravitational waves across the ...

A supermassive black hole, ULAS J1120+0641, outgrows its galaxy and disrupts the cosmic balance, revealing a mystery of the ...

A global team of astronomers has produced the first image that captures both the glowing ring of matter around a supermassive ...

Astronomers have discovered the closest black hole to Earth. It's so close that its sister stars can be seen with the naked eye. Wednesday's announcement backs up the theory that there are lots of ...

Astronomers have accurately measured the "dancing" energy jets of the first confirmed black hole, Cygnus X-1, more than 60 years after it was first spotted.

Astronomers have identified what appears to be two supermassive black holes that could collide within a century, sending out ...

If you believe Albert Einstein – and he has never been wrong about gravity after many experiments – gravity isn’t a “thing” ...

Last year, astronomers were fascinated by a runaway asteroid passing through our Solar System from somewhere far beyond. It was moving at around 68 kilometres per second, just over double Earth’s ...

As black holes feed, they pull material into a disk around them. The material orbiting in this disk gets heated to extreme temperatures, and so it becomes a plasma — a state of matter in which some of ...