Muon g-2 begins second run

Earlier this month, the Muon g-2 ("g minus two") experiment at Fermilab began its second run to search for hidden particles and forces.

Electron magnetic moment calculated precisely

(Phys.org)—An electron, as well as other subatomic particles with an electric charge, is actually a little magnet—it spins like a top, giving it its own magnetic moment.