Particle Astrophysics & Cosmology (PAC)
Researchers at the Department of Energy’s SLAC National Accelerator Laboratory are on a quest to solve one of physics’ biggest mysteries: What exactly is dark matter – the invisible substance that accounts for 85 percent of all the matter in the universe but can’t be seen even with our most advanced scientific instruments?
The era of multi-messenger astronomy promises rich rewards—and a steep learning curve.
A NASA rocket experiment could use the Doppler effect to look for signs of dark matter in mysterious X-ray emissions from space.
In honor of Fermilab’s upcoming 50th birthday, Symmetry presents physics birthday cards.