A burst of X-rays from 8 billion years ago may be the first clear evidence of a white dwarf torn apart by a black hole.

The Hubble and Chandra space telescopes are hunting for rogue black holes wandering through dwarf galaxies, which could ...

An examination of earlier observations from the wide-field X-ray telescope revealed another persistent X-ray signal preceding the gamma ray burst, which is an odd order of events for high-energy ...

Astronomers have completed the most comprehensive census of active galactic nuclei (AGN) to date, providing the clearest picture yet of the probability that galaxies of different sizes host active ...

Intermediate-mass black holes have been the missing link in the study of supermassive black holes.

Astronomers have completed the most comprehensive census of active galactic nuclei (AGN) to date, providing the clearest picture yet of the probability that galaxies of different sizes host active ...

On July 2, 2025, the China-led Einstein Probe (EP) space telescope detected an exceptionally bright X-ray source whose ...

Astronomers at the University of California, Riverside, have discovered that powerful winds driven by supermassive black holes in the centers of dwarf galaxies have a significant impact on the ...

A colossal census of the cosmos has more than tripled the number of active black holes known to reside in miniature galaxies and found the biggest haul of middleweight black holes to date. That’s ...

Astronomers might have found the answer to why supermassive black holes emerge in our galaxies, such as in our Milky Way. IN SPACE: In this handout from NASA/ESA, an artist's concept illustrates a ...

The black hole, with an official name of 1ES 1927+654, is located in the distant constellation Draco. Astronomers have been monitoring the black hole for years, primarily since 2018 when the mass was ...

A Hubble Space Telescope image shows a dwarf galaxy, VCC128, at the center, and the enlargement at right shows a double nucleus that suggests the presence of a black hole. Astronomers have found ...