The mysterious Amaterasu particle may not be a proton at all. New research suggests that some of the most extreme cosmic rays ...

Physicists know that their elegant theoretical description of forces and particles — the standard model of particle physics — ...

Some of these tiny elementary particles are among the most important particles in the universe. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Europe's physics lab CERN is planning to build a particle-smasher even bigger than its Large Hadron Collider to continue searching for answers to some of the universe's tiniest yet most profound ...

Everything we see around us, from the ground beneath our feet to the most remote galaxies, is made of matter. For scientists, that has long posed a problem: According to physicists’ best current ...

Scientists working at CERN’s Large Hadron Collider may be seeing the strongest hints yet of physics beyond the Standard Model — the decades-old theory that explains the fundamental particles and ...

Scientists have proposed a new kind of subatomic particle to explain another particle’s mysterious disintegration. The kaon, a special case of meson particle, is made of one quark and one antiquark.