Add Yahoo as a preferred source to see more of our stories on Google. They're tiny, invisible, and travel across the universe. And trillions of them just flew through your body. What are they?

But only in the last 70 years have we known for certain they were there. In 1956, physicists Clyde Cowan and Frederick Reines ...

Physicists at CERN's Large Hadron Collider in Switzerland said Wednesday that they had discovered a new subatomic particle that looks like the Higgs boson, a potential key to an understanding of why ...

The LHC, operating at unprecedented luminosities, has revealed a system of five "glue-like" particles that could help us to fill out a "periodic table" of subatomic particles. Share on Facebook (opens ...

In their search for more flavors of Higgs bosons, a team of researchers at CERN stumbled across what could be evidence of the smallest matter-antimatter particle ever. The hypoethical particle, known ...

GENEVA — After a quarter-century of searching, scientists have nailed down how one particularly rare subatomic particle decays into something else — a discovery that adds certainty to our thinking ...

They're tiny, invisible, and travel across the universe. And trillions of them just flew through your body. What are they? Neutrinos ‒ and scientists Wednesday announced the discovery of the most ...