This artist's concept takes a fanciful approach to imagining small primordial black holes. In reality, such tiny black holes would have a difficult time forming the accretion disks that make them ...

New observations reveal that the relationship between ultraviolet and X-ray light in quasars has changed over billions of ...

Physicists have detected the biggest ever merger of colliding black holes. The discovery has major implications for researchers’ understanding of how such bodies grow in the Universe. “It’s super ...

Astronomers have found a system of three supermassive black holes, all actively feeding, that appear to be combining into a ...