As The Infinite Monkey Cage explores what we know about the subatomic particles that form our universe ... substance of the cosmos. 1. The word “atom” comes from the Greek for “indivisible ...

Tiny subatomic particles called muons aren’t moving according ... They’re smaller than an atom. And, the muon is one of them. It’s like an electron, but 200 times heavier.

The Belle II experiment has recently made precise measurements of the lifetime of subatomic particles called quarks and leptons (such as electrons and neutrinos). These particles are believed to ...

Understanding the origin of the mass of subatomic particles like protons and neutrons is a major challenge in modern physics.