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 ...
"Finding more supermassive black holes that are potentially hosting jets raises the question as to how these black holes grew ...
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.
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.
Astronomers discover a supermassive black hole, weighing 700 million suns, firing a giant energy beam directly at Earth from ...
Astronomers detected X-ray flashes from the black hole that increased in frequency from one every 18 minutes to one every seven minutes.
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 ...
A supermassive black hole in a distant galaxy is once again surprising scientists. In 2018, a black hole called 1ES 1927+654, ...