String theory is perhaps the most high-profile candidate for what physicists call a theory of everything – a single ...

String theory attempts to unify all forces and particles in the universe using vibrating strings. It aims to explain the Standard Model of particle physics, which is incomplete. String theory ...

Scientists are on the trail of a mysterious five-particle structure that could challenge one of the biggest theories in physics: string theory. This rare particle—never seen before and predicted ...

The predictions of conventional string theory are incompatible with the observation of dark energy, which appears to accelerate the expansion of our Universe.