Two leading candidates for a “theory of everything,” long thought incompatible, may be two sides of the same coin. Eight decades have passed since physicists realized that the theories of quantum ...

Quantum gravity is an attempt to reconcile two theories of physics. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Quantum gravity is an attempt ...

The Universe we know and love -- with Einstein's General Relativity as our theory of gravity and quantum field theories of the other three forces -- has a problem that we don't often talk about: it's ...

String theory might be the theory of everything… or a flawed framework for theoretical physics. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.