"Black holes are the ultimate cosmic fossils," Jani said. "The masses of black holes reported in this new analysis have remained highly speculative in astronomy. This new population of black holes ...

A newly analyzed radio image reveals twin lobes stretching roughly 66,000 light-years on each side of a quasar called ...

In the world of black holes, there are generally three size categories: stellar-mass black holes (about five to 50 times the ...

Black holes are one of our Universe’s greatest mysteries. What are they made of? What happens after they gobble something up?