NASA has visualized the cataclysm, which is thought to have caused a mysterious eruption of gamma rays captured by telescopes ...

The European Space Agency said that the black hole inside the spiral galaxy NGC 3783 has the mass of 30 million suns.

Astronomers have spotted the longest gamma-ray burst ever seen, a cosmic explosion that lasted seven hours — and they ...

Intermediate mass black holes (IMBH), if they exist, have between about 100 and 1,000 solar masses, placing them in between ...

A never-before-seen blast from a supermassive black hole was spotted by two sophisticated X-ray space telescopes. This giant ...

X-ray space telescopes caught a supermassive blackhole flinging matter into space at a fifth of the speed of light.

A sudden X-ray flare from a supermassive black hole in galaxy NGC 3783 triggered ultra-fast winds racing outward at a fifth the speed of light—an event never witnessed before. Using XMM-Newton and ...

How confusing inevitability with reality built decades of paradox. What if general relativity never actually tells us that ...

Supersonic shock waves are cone-shaped disturbances that result from an object moving faster than the speed of sound. If you were unlucky enough to be struck by a primordial black hole, its shock ...

Surprisingly, some of the universe's brightest objects are black holes. As scorching gas and dust flow around and into a ...

Learn how researchers used Einstein’s theory of general relativity to create the most accurate simulations to date.

Researchers have created a fully relativistic model showing that gravitational waves might carry hidden clues about dark ...