At the center of a galaxy 10 billion light-years away, a supermassive black hole is the new record holder for brightest flare ...

But what if the famous Seven Sisters were, in fact, not seven at all but rather thousands, spread out so widely in the sky ...

Black holes form when an enormous mass collapses into an infinitesimal point known as a singularity. That compression creates such powerful gravity that nearby matter, particles and even photons are ...