Everything that falls into a black hole falls in at the same time. Perhaps in the distant past, some unfortunate alien astronaut was sent past the event horizon to explore what lies beyond. From our ...

Cosmologists have long treated black holes and the Big Bang as separate extremes of physics, one swallowing light, the other ...

In a new Physical Review Letters study, researchers have successfully followed a gravitational wave's complete journey from the infinite past to the infinite future as it encounters a black hole.

Black holes might have infinite shapes. In a new study, mathematicians explained when black holes could have other shapes than the doughnut form. In this handout photo provided by the National Science ...

Einstein's general theory of relativity, published in 1915, relates spacetime curvature to matter distribution, leading to the Schwarzschild solution describing a black hole. The Schwarzschild ...

We do not live inside of a black hole, but that does not rule out the possibility that our universe was born from one. Oddly, if you were to take all the matter contents of the universe and cram them ...

Black hole mergers are beautiful — and some of the most violent events in the cosmos. Here's how the process unfolds. The story begins with two black holes orbiting far from each other in long, lazy ...