If a particle has no mass, how can it exist?

A SLAC/Stanford study of the population of satellite galaxies orbiting the Milky Way provides new clues about the particle nature of dark matter.

Particle accelerators are some of the most complicated machines in science.

Four large meshes made from 2 miles of metal wire will extract potential signals of dark matter particles.

The approach could advance our understanding of fundamental forces under extreme conditions with applications from astrophysics to fusion research.

Monika Schleier-Smith and Kent Irwin explain how their projects in quantum information science could help us better understand black holes and dark matter.

Some theorists have taken to designing their own experiments to broaden the search for dark matter.

Physicists often find thrifty, ingenious ways to reuse equipment and resources.

SLAC scientists find a new way to explain how a black hole’s plasma jets boost particles to the highest energies observed in the universe. The results could also prove useful for fusion and accelerator research on Earth.

During the last four years, LHC scientists have filled in gaps in our knowledge and tested the boundaries of the Standard Model.

An advisory committee is evaluating proposals for first experiments at SLAC’s future FACET-II accelerator facility.

Our best model of particle physics explains only about 5 percent of the universe.