The newly discovered "blazar," which has a mass equal to 700 million suns, is the oldest of its kind ever seen and changes ...

A black hole infamous for strange features has once again baffled astronomers, this time with rapid X-ray flashes. What could ...

Astronomers have identified a rare cosmic phenomenon: a supermassive black hole, known as J0410−0139, located 12.9 billion ...

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

"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 ...

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

Astronomers discover a supermassive black hole, weighing 700 million suns, firing a giant energy beam directly at Earth from ...

NASA telescopes reveal 35% of supermassive black holes are hidden by dust, reshaping theories about their role in galaxy ...

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 ...

Galactic gravity can dramatically impact wide binary stars, pushing them towards unexpected mergers or collisions. The ...

WASHINGTON: Scientists have observed flashes of X-rays emanating from the nucleus of a galaxy near our Milky Way, gradually ...