Scientists have a pretty good idea of how our universe began: According to the Big Bang theory, an infinitely small, dense point rapidly expanded 13.8 billion years ago, and the universe has been ...

A new theory claims dark matter and dark energy don’t exist — they’re just side effects of the universe’s changing forces. By rethinking gravity and cosmic timelines, it could rewrite our ...

The big thinkers at Aperture explore entropy and the eventual heat death of the universe.

Tinkering at their desks with the mathematics of quantum space and time, physicists have discovered a puzzling conundrum. The arcane rules of quantum theory and gravity let them imagine many different ...