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

"This is how you solve the universe-breaking problem." ...

"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 ...

Astronomers have detected a mid-infrared flare from the supermassive black hole at the heart of the Milky Way galaxy for the ...

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

A strange black hole is making scientists scratch their heads.

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

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

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 weird outbursts of a distant supermassive black hole may be caused by a death-defying white dwarf walking a cosmic tight ...

After decades of study, scientists sound genuinely optimistic about the possibility of detecting primordial black holes, which might explain dark matter.

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