If you want to explain what was and what is, you need particle physics. Because everything we see consists of molecules and atoms, and atoms in turn consist of atomic nuclei and electrons. The atomic ...

In the early 1970s, David J. Gross exposed the hidden structure of the atomic nucleus. He helped to reinvent string theory in the 1980s. In 2004, he shared the Nobel Prize in Physics. And today he ...

A breakthrough in the calculations needed to understand the strong nuclear force that comes from the motion of quarks and gluons is allowing scientists to begin finding answers to some profound ...

One hundred years ago, Albert Einstein had only just published his revolutionary new theory of gravity, atomic nuclei were entirely mysterious, and quantum “theory” was a tissue of guesswork.

A tiny, unseen force could potentially alter our basic understanding of the universe — if it really exists. Theoretical physicists at UC Irvine say they’ve found evidence for a fifth fundamental force ...