Marcus Chown’s “A Crack in Everything” is a journey through space and time with the people studying one of the most enigmatic ...

Strange x-ray pulses hint at a surprisingly long-lived white dwarf orbiting precariously close to a supermassive black hole ...

"Finding more supermassive black holes that are potentially hosting jets raises the question as to how these black holes grew ...

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

The James Webb Space Telescope has captured a mid-infrared picture of Sagittarius A*, filling in a long-standing gap in ...

NASA astronauts Nick Hague and Suni Williams completed a six-hour spacewalk to repair and upgrade equipment outside the ...

A strange black hole is making scientists scratch their heads.

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

Researchers found far more hidden black holes than previously known, indicating plenty of behemoths lurking in thick clouds ...

"If our eyes were able to detect X-rays, the sky would be full of dots. And every single one of those dots would be an ...

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

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