Using the Five-hundred-meter Aperture Spherical radio Telescope (FAST), Chinese astronomers have detected a new ultra-faint ...

Two experiment collaborations, the g2p and EG4 collaborations, combined their complementary data on the proton’s inner structure to improve calculations of a phenomenon in atomic physics known as the ...

In 2010, atomic physicists at the Paul Scherrer Institute (PSI) in Switzerland measured the radius of a proton in muonic hydrogen and found it was smaller than previously thought. This unexpected ...