Active galactic nuclei are supermassive black holes at the center of certain galaxies. As matter falls into these black holes ...

A mysterious black hole has started behaving even more strangely, scientists have said. The supermassive black hole has been ...

In any globular cluster, all its stars formed at the same time, from the same cloud of gas. The Milky Way has more than 150 known globular clusters; these objects are excellent tools for studying, for ...

Since 2018, we've seen 1ES 1927+654 generate jets in real time and found it may have a lone white dwarf orbiting near the ...

The dense stellar remnant would, if confirmed, be the closest known object to any black hole, according to preliminary ...

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

An X-ray observatory used to study neutron stars is “back in the black” and a cosmic ray detector is ready for possible ...

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

This suggests that NGC 5084 is host to a supermassive black hole tipped on its side, and scientists think it could be ...

All outdoor adventurers should have one or two big and rugged duffel bags in their gear closet—ideally stuffed with outdoor ...

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 ...

Regular pulses of X-ray radiation emanating from a supermassive black hole could be explained by a white dwarf star on the ...