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

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

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

A distant supermassive black hole, the mysterious 1ES 1927+654, emits X-ray pulses unlike anything previously recorded, which ...

WASHINGTON: Scientists have observed flashes of X-rays emanating from the nucleus of a galaxy near our Milky Way, gradually ...

These images show different examples of black holes and accretion disks with various spin configurations: retrograde (black ...

Astronomers have detected a mid-infrared flare from the supermassive black hole at the heart of the Milky Way galaxy for the ...

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

In this artist’s concept, matter is stripped from a white dwarf (sphere at lower right) orbiting within the innermost accretion disk surrounding 1ES 1927+654’s supermassive black hole. Astronomers ...

International teams of astronomers monitoring a supermassive black hole in the heart of a distant galaxy have detected ...

Using the MIRI instrument onboard the James Webb Space Telescope, an international team of scientists made the first-ever ...