Astronomers have long struggled to clock the speed and power of Cygnus X-1, a ...

Black holes are known for swallowing everything around them, but some of them also ...

The galaxy M87, located in the Virgo constellation, contains one of the most famous black holes ever seen — M87*, a giant that weighs over six billion suns. Scientists first spotted a bright jet ...

A new theoretical proposal argues that the massive object sitting at the center of our galaxy may not be a black hole at all, but rather a dense clump of fermionic dark matter with no event horizon.

Researchers have spent 10 years improving the massive detectors they use to catch shockwaves from colliding black holes. Now the science is precise enough to test one of Stephen Hawking's key ideas.

Scientists have measured the true power of black hole jets for the first time, revealing streams as powerful as 10,000 Suns.

About 5 billion light-years away from where you're sitting, in one of the most massive galaxies on record, there exists an astonishing black hole. It was only just measured by scientists who managed ...

The star causing this flare is not yet fully devoured: "Like a fish only halfway down the whale's gullet." When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

Our Milky Way galaxy may not have a supermassive black hole at its center but rather an enormous clump of mysterious dark matter exerting the same gravitational influence, astronomers say. They ...