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

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

"This is certainly an outburst unlike any other we've seen in the past 50 years." Astronomers have spotted the longest gamma-ray burst ever seen, a cosmic explosion that lasted seven hours — and they ...

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 ...

Astronomers capture the twinkle of a distant quasar, RX J1131, and reveal the secret size of a black hole's fiery corona.

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

A black hole is coming straight for Earth. We could wait for it to gobble us up, but instead we're going to try to destroy it ...