A new breed of experiments seeks sources of cosmic rays and other astrophysics phenomena.

For physicists, seeing is not always believing.

Amateurs and professionals share the credit in the newest publications from the Space Warps project.

SLAC is ramping up its efforts to understand neutrinos – elusive fundamental particles whose properties may help researchers solve a number of cosmic mysteries.

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

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.

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.