"This black hole has much more mass -- about seven times the mass of our Sun -- than any neutron star ... "Now, we want to find more of these ancient black holes. There must be hundreds of ...

At the edge of our solar system, some unknown object is manipulating the paths of chunks of ice as they circle the sun. These objects ... could be one of these ancient black holes.

This object, some 12.8 billion light years away, is 420 trillion times more luminous and 12 billion times more massive than the sun. Regardless of size, a black hole operates on the same ...

It's from just 900 million years after the big bang, and the old quasar — a shining object produced by a massive black hole — is 420 trillion times more luminous than our sun. That ...

It's the first of a trilogy, and it's called "Black Sun." ROANHORSE ... design of this fantasy city is based on actual cities that ancient people in the Americas built? ROANHORSE: Well, I was ...

The rogue black hole is devouring a small companion ... helping radio and X-ray astronomers discover an ancient black hole speeding through the Sun's galactic neighborhood. The rogue black hole ...