The blazar BL Lacertae, a supermassive black hole surrounded by a bright disk and jets oriented toward Earth, provided ...

For the first time, astronomers have probed the physical environment of repeating X-ray outbursts near monster black holes ...

Ever since general relativity pointed to the existence of black holes, the scientific community has been wary of one peculiar ...

Physicists are trying to ditch the concept of space-time – the supposed fabric of physical reality. Quantum columnist Karmela Padavic-Callaghan explains why ...

The laws of general relativity suggest that it is possible for an object to have such a density that nothing, not even light, ...

An experimental setup mimics a “black hole bomb” first theorized in 1971. The spinning cylinder with circuitry is true to the ...

The vastness of the cosmos hides more than distant stars—it conceals the very forces that shape reality. Astronomers have ...