A century after Albert Einstein sketched out his radical picture of gravity, astronomers have now watched a black hole physically twist the fabric of spacetime around it. By tracking the death spiral ...

For the first time, astronomers have directly observed a spinning black hole bending space and time, as predicted in Albert Einstein's theory of general relativity more than a hundred years ago. The ...

"This is a real gift for physicists as we confirm predictions made more than a century ago." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.