Fermilab
- A subatomic particle called the muon is wobbling far more than leading physics models can explain.
- Its unusual behavior could be evidence of a fifth force of nature or a new dimension.
- Scientists noticed the phenomenon in 2001, 2021, and again this year. Odds are, it's not a fluke.
Physicists at the Fermi National Accelerator Laboratory have found more evidence that a subatomic particle is behaving unexpectedly. And the reason could be evidence of a new, fifth force of nature.
Currently, there are four known forces of nature: gravitational, electromagnetic, and the strong and weak nuclear forces. These four forces help us describe how the universe works.