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

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

Black holes that have been obscured by clouds of dust still emit infrared light, enabling astronomers to spot them for the ...

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

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

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

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

Astronomers detected X-ray flashes from the black hole that increased in frequency from one every 18 minutes to one every ...

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 strange black hole is making scientists scratch their heads.

"Finding more supermassive black holes that are potentially hosting jets raises the question as to how these black holes grew ...