muon-g-2-doubles-down_copy_1080x720-1
The muon g-2 ring sits in its detector hall at the Fermilab in Illinois. Photograph: Ryan Postel/Fermi national accelerator laboratory/Reuters
The muon g-2 ring sits in its detector hall at the Fermilab in Illinois. Photograph: Ryan Postel/Fermi national accelerator laboratory/Reuters