New observations reveal that the relationship between ultraviolet and X-ray light in quasars has changed over billions of ...

Black holes have long captured the imagination of both scientists and the general public. These exotic objects—once thought ...

Astronomers have decoded the hidden past of a distant red giant star by listening to tiny vibrations in its light, revealing ...

Leading X-ray space telescopes XMM-Newton and XRISM have spotted a never-seen-before blast from a supermassive black hole. In ...

Astronomers have confirmed the first known triple system in which all three galaxies host actively feeding, radio-bright ...

Cutting-edge supercomputer simulations reveal intricate processes around black holes, improving our understanding of ...

In any other year, the supermassive black hole mentioned above would probably scoop the award for most striking outburst, but not in 2025. This year, that accolade goes to a flare designated ...

Three merging galaxies host three active black holes, offering rare insight into galaxy and black hole growth.

Astronomers noticed something odd while reviewing radio data from distant space. Three bright signals appeared close together ...

Black holes are among the most fascinating and enigmatic objects in the universe. Born from collapsed stars and governed by ...

When a star gets too close to a black hole, the gravity of the black hole changes what happens next in really big ways. They ...

An international team of astronomers has uncovered subtle but significant signs that the cosmic engines powering quasars, ...