Space–time collision Artist’s impression of a black-hole binary system generating gravitational waves. The black holes will eventually merge, and this latest research could improve our understanding ...

For more than a century, gravity and quantum physics have stubbornly resisted a common language, one describing the smooth ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Who was Schrödinger, and what happened to his cat? What exactly is string theory and why should ...