The newly discovered "blazar," which has a mass equal to 700 million suns, is the oldest of its kind ever seen and changes ...

Astronomers discover a supermassive black hole, weighing 700 million suns, firing a giant energy beam directly at Earth from ...

Sagittarius A* is the supermassive black hole at the center of the Milky Way. As supermassive black holes go, it is fairly ...

A Yale-led team of astronomers has detected an intensely brightening and dimming quasar that may help explain how some ...

Supermassive black holes can have trillions of times more mass than the Sun, only exist in specific locations, and could ...

Using the aging Hubble Space Telescope, Achenbach spotted an unusual spiral galaxy quasar with a visible jet. This calls into ...

Astronomers have unveiled an explosive cosmic fireworks display of stars interacting with their environment. This dazzling ...

A black hole infamous for strange features has once again baffled astronomers, this time with rapid X-ray flashes. What could ...

The spacecraft built and operated by Texas-based Firefly Aerospace launched in the early Monday hours from Florida aboard a ...

There’s plenty of action at the center of the galaxy, where a supermassive black hole (SMBH) known as Sagittarius A* (Sgr A*) literally holds the galaxy together. Part of that action is the creation ...