The James Webb Space Telescope has captured a mid-infrared picture of Sagittarius A*, filling in a long-standing gap in ...

Strange x-ray pulses hint at a surprisingly long-lived white dwarf orbiting precariously close to a supermassive black hole ...

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

Galactic nuclei images reveal how supermassive black holes interact with their surroundings using infrared telescopes.

NASA's Chandra and NuSTAR telescopes have teamed up to study a supermassive black hole-powered quasar that could have played ...

Astronomers have detected the most ancient blazar ever observed, originating from the early universe and emitting a beam of ...

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

A supermassive black hole has been discovered by astronomers that's shooting a giant energy beam directly at Earth.

Supermassive black holes with powerful jets of high-energy particles, pointing directly at Earth are called blazars.

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

In 2018, a galaxy about 270 million light-years away from Earth exhibited a major increase in activity. It quieted down again by 2020 -- only to dramatically increase its output again in 2023. At that ...