Reidar Hahn

Reidar Hahn is the Fermilab photographer.

Bovine majesty

In anticipation of the arrival of baby bison at Fermilab, we're sharing some of our favorite bison photos from years past. In 2016, a bison on the Fermilab campus shows off its beard. bison Photo: Reidar Hahn

In anticipation of the arrival of baby bison at Fermilab, we’re sharing some of our favorite bison photos from years past. In 2016, a bison on the Fermilab campus shows off its beard.

Oh, hello

In anticipation of the arrival of baby bison at Fermilab, we're sharing some of our favorite bison photos from years past. In 2008, a bison gets its close-up. bison Photo: Reidar Hahn

In anticipation of the arrival of baby bison at Fermilab, we’re sharing some of our favorite bison photos from years past. In 2008, a bison gets its close-up.

On July 19, 2013, the Muon g-2 magnet ring was moving up the Illinois River on its five-week journey from Brookhaven National Laboratory (Long Island, New York) to Fermilab. Scientists will announce the first results from the Muon g-2 experiments at 10 a.m. CDT on April 7, 2021. Muon G-2, Brookhaven National Laboratory Photo: Reidar Hahn, Fermilab

On July 19, 2013, the Muon g-2 magnet ring was moving up the Illinois River on its way from Brookhaven National Laboratory to Fermilab. It arrived in Lemont, Illinois, on July 21, 2013. Scientists will announce the first results from the Muon g-2 experiment at 10 a.m. CDT on April 7, 2021.

Operating at 325 MHz, the single-spoke resonators, or SSRs, are key to the PIP-II cold linac's performance. The PIP-II SSR technical team declared 3.25 to be Spoke Day. Fermilab engineers Donato Passarelli and Leonardo Ristori pose with one here. people, PIP-II, accelerator technology, cavity Photo: Reidar Hahn, Fermilab

Operating at 325 MHz, the single-spoke resonators, or SSRs, are key to the PIP-II cold linac’s performance. The PIP-II SSR technical team declared 3.25 to be Spoke Day.