Fermi National Accelerator Lab

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We're a US DOE national lab dedicated to exploring high-energy physics. We enjoy building things, smashing things, and discovering things.


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#ThrowbackThursday to the capacitor tree at Fermilab in 1977.

#science #Fermilabs50th #physics #art #TBT
#ThrowbackThursday to May 11, 1974, when Fermilab was named Fermilab! This photo shows the dedication ceremony, which took place in the horseshoe in front of Wilson Hall.

#TBT #Fermilabs50th #science #physics
The old bubble chamber is one of the most sci-fi looking things on the Fermilab site. #science #physics
We’re turning 50 on June 15. Between now and then, we’re sharing 50 Fermilab discoveries and innovations! Today is our first milestone: when Fermilab's DONUT experiment discovered the tau neutrino.

On July 21, 2000, Fermilab announced the first direct evidence for a particle called the tau neutrino, the third kind of neutrino known to physicists. It had been hypothesized but never directly observed until the 2000 discovery, which was made by the DONUT (Direct Observation of the Nu Tau) experiment at Fermilab. The other two types, the electron neutrino and the muon neutrino, had been discovered in 1956 and 1962, respectively.

See all 50 milestones as they are released at the link in our profile - and let us know your favorite Fermilab discoveries and innovations!

#TBT #ThrowbackThursday #neutrinos #physics #science #lablife
Baby bison are here at Fermilab! Come visit them in person! 
#nationalmammal #aww #babyanimals #lablife
#TBT to the Cockcroft Walton preaccelerator that used to be at the start of Fermilab's accelerator chain. We use different technology now: radio-frequency quadrupoles.
#ThrowbackThursday #science #physics
Goslings are here too! #Fermilab #spring
Wildflowers are blooming at #Fermilab! If you live nearby, come take a stroll on the trail and check them out.
The Muon g-2 experiment is really coming together! This project repurposes a 50-foot-wide electromagnet from @brookhavenlab to investigate properties of muons, the heavy cousins of electrons, and search for new physics!

#nbd #science #physics #particles #gminus2
This image from today's featured photographer, Marty Murphy (@mjmphotographic), captures a unique perspective of Fermilab's Wilson Hall. #science #architecture
Scientists at Fermilab helped build the Dark Energy Camera that sits at the Cerro Tololo Observatory in Chile.  #science #physics
Spring is upon us. One of the many fun activities at Fermilab? Looking for wildflowers and birds along the Margaret Pearson Trail! The paths really stand out in this photo from October. #nature