“If you wait long enough you start seeing the difference: a white hole ends up emitting whatever is inside and disappearing. A black hole emits only a very peculiar form of thermal ...

A black hole infamous for strange features has once again baffled astronomers, this time with rapid X-ray flashes. What could they be?

The dense stellar remnant would, if confirmed, be the closest known object to any black hole, according to preliminary research Sara Hashemi Daily Correspondent An artist’s concept of a white ...