Add Yahoo as a preferred source to see more of our stories on Google. You've heard of a supermassive black hole. Now, what about an "ultramassive" black hole? That descriptor is the only word ...

Astronomers using the James Webb Space Telescope (JWST) keep finding the same impossible thing: ancient supermassive black ...

Astronomers have completed the most comprehensive census of active galactic nuclei (AGN) to date, providing the clearest picture yet of the probability that galaxies of different sizes host active ...

As gas falls toward a black hole, it heats up and shines. If the glow becomes intense enough, it can push incoming gas away. Astronomers call this balancing point the Eddington limit, and for decades ...

Some things in cosmology may simply be unknowable. Why is there something rather than nothing? What lies outside the universe? What is inside a black hole? That last one has been niggling at ...

A small but incredibly fast unwanted guest is about to swing past Earth at the speed of light. Yeah, this is the tiniest black hole in the Universe. But despite its small size, could it rip our planet ...

Astronomers examining data from the James Webb Space Telescope say they’ve spotted what might be the oldest black hole in the universe, born less than a second after the Big Bang. Their findings, ...

While it's much smaller than the largest supermassive black holes detected, it's still a whopper considering how early in the history of the universe it appeared. When you purchase through links on ...

The size and spin of black holes can reveal how they are formed and where they were born. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. You can ...

A STAR-DESTROYING black hole is releasing a jet that’s so high-energy it’s one of the “brightest things ever detected in the universe”. Experts say that the black hole is ...