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 ...

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

As he explains for the uninitiated masses, string theory entirely holds up on its internal mathematics, but to actually test whether the outcomes it predicts are true, experimenters would need to ...

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