LCLS-II at SLAC is an X-ray laser that allows scientists to take snapshots of atoms and molecules in motion. Fermilab is providing SLAC with 22 cryomodules for the LCLS-II upgrade, which will take X-ray science to the next level.

One of the ProtoDUNE experiment’s detectors is a single-phase neutrino detector. It will require a number of anode planes to detect the signature of a neutrino interaction in a bath of liquid argon. The University of Wisconsin is fabricating some of these anode planes. This is a glimpse at the process.

The U.S. Department of Energy’s Secretary Rick Perry visited the Fermilab site on Jan. 9. During his visit, he met with scientists and saw much that the lab has to offer: neutrino experiments going on underground, accelerator technology, quantum computing technology, the 50-foot Muon g-2 magnet, the herd of bison and much more.

In this 8-minute video, Don Lincoln explains how, conceptually speaking at least, there are two kinds of mass — gravitational and inertial — and how the relationship between the two has huge consequences on our understanding of the universe.


Former Fermilab Deputy Director Young-Kee Kim was once a CDF experiment postdoc who put her heart and soul into the particle detector. At one point, her tireless efforts brought her work to a brief, soporific standstill.

Why E=mc2 is wrong

The most famous equation in all of science is Einstein’s E = mc2, but it is also frequently misunderstood and misused. In this video, Don Lincoln explains the truth about this equation and how people often use it incorrectly.

Magnetic focus

Scientist Craig Moore talks about a small fix in an accelerator that paid big dividends for the Tevatron program in the 1990s.

Central to all of the equations of relativity is the Lorentz factor, also known as gamma. In this 8-minute video, Don Lincoln shows you a simple way to derive gamma and explains its physical significance.

Fermilab scientist Dmitri Denisov recalls how, during autumn months, DZero experimenters occasionally collided with critters seeking warmth in the underground areas by the detector.

The next generation

Fermilab is closely tied to the local community, drawing students and teachers through its public engagement programs. Some of the lab’s younger guests are impressive, as illustrated by an encounter that scientist Sowjanya Gollapinni shared with a visiting middle school neighbor.