The James Webb Space Telescope has captured a mid-infrared picture of Sagittarius A*, filling in a long-standing gap in ...
The newly discovered "blazar," which has a mass equal to 700 million suns, is the oldest of its kind ever seen and changes ...
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.
The dense stellar remnant would, if confirmed, be the closest known object to any black hole, according to preliminary ...
A strange black hole is making scientists scratch their heads.
Astronomers detected X-ray flashes from the black hole that increased in frequency from one every 18 minutes to one every seven minutes.
Researchers in South Korea are developing a constellation of satellites that could reveal what goes on in the vicinity of ...
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 ...