Is it possible that these fundamental building blocks of atoms have a finite lifetime?

The DOE has approved the project’s scientific scope, schedule and funding. SLAC researchers are among the 200 physicists and astronomers who make up the international DESI Collaboration.

Dark matter experiments are becoming so sensitive, even the ghostliest of particles will soon get in the way.

The Higgs doesn’t quite fit in with the other particles of the Standard Model of particle physics.

The CMS and ATLAS experiments combined forces to more precisely measure properties of the Higgs boson.

The Large Synoptic Survey Telescope’s ‘Eye’ Will be Built at SLAC.

Theorists from the Institute for Advanced Study have proposed a way forward in the quest to test string theory.

Exploding stars have an immense capacity to destroy—and create.

How can we figure out when the universe began?

Why are there three almost identical copies of each particle of matter?

Observations of this kind could lead scientists to the source of ultra-high-energy cosmic rays.