The loudest crash of gravitational waves ever heard provides an intriguing way of studying event horizons, the boundaries at ...

There is no sound in space, but black holes can still sing. When two black holes collide, their song ripples through the very ...

A NASA visualization of a black hole. (NASA's Goddard Space Flight Center/Jeremy Schnittman) Everyone knows that no ...

If, in space, no one can hear you scream, it seems that you can actually hear the sound of a crash when two black holes ...

Black hole quantum effects are usually thought to be too small to have any observable signatures. This is indeed the case for heavy black holes, such as the ones detected via gravitational waves by ...

Scientists have proposed a new method for finding tightly bound supermassive black hole pairs by searching for stars that flash repeatedly as their light is magnified by the black holes’ gravity. The ...

Black holes are among the most mysterious objects in the cosmos. They can bend ...

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 ...