The stuff of daily existence is made of atoms, and all those atoms are made of the same three things: electrons, protons and neutrons. Protons and neutrons are very similar particles in most respects.

The stuff of daily existence is made of atoms, and all those atoms are made of the same three things: electrons, protons and neutrons.

The Isotope Separator On-Line facility (ISOLDE) directs a proton beam from the Proton Synchrotron Booster (PSB) onto specially developed thick targets, producing low-energy beams of radioactive nuclei ...

Does the proton decay? While this was a famous prediction of Grand Unified Theories (GUTS) developed in the 1970s and 1980s, experimentalists have ruled it out—or rather, put lower limits on its mean ...

According to the Standard Model, protons are inherently stable and will not decay into other particles. Other theories, however, contend that they do. If true, that means that in the astronomically ...

Physicists have failed to find disintegrating protons, throwing into limbo the beloved theory that the forces of nature were unified at the beginning of time. For 20 years, physicists in Japan have ...

Nuclear physicist Evangeline Downie hadn’t planned to study one of the thorniest puzzles of the proton. But when opportunity knocked, Downie couldn’t say no. “It’s the proton,” she exclaims. The ...

Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. The story of our cosmic history is one of an expanding and cooling ...