Astronomers have probed the physical environment of repeating X-ray outbursts near monster black holes thanks to data from NASA's NICER (Neutron star Interior Composition Explorer) and other missions.

Ever since general relativity pointed to the existence of black holes, the scientific community has been wary of one peculiar ...

A regular black hole would have the light ring and the outer horizon, but also an inner horizon, which would enclose a core ...

An experimental setup mimics a “black hole bomb” first theorized in 1971. The spinning cylinder with circuitry is true to the ...

Stellar black holes, these cosmic monsters born from the collapse of massive stars, play a key role in galaxy dynamics. A ...

Ever since general relativity pointed to the existence of black holes, the scientific community has been wary of one peculiar ...

Quantum ideas describe particles and fields in tiny packages, but general relativity paints gravity as smooth curves in space ...

Researchers have developed a new quantum theory of gravity which describes gravity in a way that's compatible with the Standard Model of particle physics, opening the door to an improved understanding ...

Black holes are known for their voracious appetites, consuming everything — even light — that falls inside them with no hope ...

An isolated black hole has been identified for the first time. Researchers used data from the Hubble telescope and the Gaia ...

"Our findings pave the way for rigorous examinations of black holes and the exploration of new physics in gravity," Motohashi ...