In a bold step toward solving one of science’s most puzzling problems, researchers have proposed a new way to bring gravity ...

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 ...