Scientists at the Fermi National Accelerator Laboratory in the US are studying the unusual behavior of muons, subatomic particles similar to electrons but heavier, to understand whether there might be gaps in their understanding of physics. The experiment involves observing the wobble or “precession” of muons as they pass through a magnetic field. The results show a significant variation from predictions based on the Standard Model of particle physics, raising the possibility of unknown particles or forces at play. The researchers hope their final findings, based on years of data collection, will shed light on the mystery within the next two years.