That incredible rate persists despite the fact that at the heart of the Phoenix cluster is a supermassive black hole 10 ...

Could our galaxy actually be inside a black hole? New research seems to suggest this possibility. NASA 's James Webb ...

Accelerating x-ray flashes could come from the core of a dead star teetering near the event horizon. In 2018 astronomers at MIT and elsewhere observed previously unseen behavior from a black hole ...