Until recently, one of the closest orbiting each other pairs of supermassive blackholes was found in NGC 7727. That pair…
If two black holes merge in the middle of space, and nobody's around to see it, does it really happen?…
The Theory of Relativity predicted the existence of black holes and neutron stars. Einstein gets the credit for the theory…
A new tool called the Black Hole Collision Calculator let's users see just how powerful a collision between a black…
Black hole mergers with very different masses tell us how small mergers can give rise to even larger ones.
Black hole merger events are some of the most energetic, fearsomely energetic events in all the cosmos. When black holes…
One of the most pressing questions in astronomy concerns black holes. We know that massive stars that explode as supernovae…
Einstein's Theory of General Relativity predicted that black holes would form and eventually collide. It also predicted the creation of…
Astronomers have spotted a 40 billion solar mass black hole in the Abell 85 cluster of galaxies. They found the…
Astronomers have spotted three supermassive black holes (SMBHs) at the center of three colliding galaxies a billion light years away…