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.

https://www.fnal.gov/

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A team of scientists using the Dark Energy Camera (DECam), the primary observing tool of the Dark Energy Survey, was among the first to observe the fiery aftermath of a recently detected burst of gravitational waves, recording images of the first confirmed explosion from two colliding neutron stars ever seen by astronomers.

Images taken with DECam captured the flaring-up and fading over time of a kilonova — an explosion similar to a supernova, but on a smaller scale — that occurs when collapsed stars (called neutron stars) crash into each other, creating heavy radioactive elements.

This particular violent merger, which occurred 130 million years ago in a galaxy near our own (NGC 4993), is the source of the gravitational waves detected by the Laser Interferometer Gravitational-Wave Observatory (LIGO) and the Virgo collaborations on Aug. 17. This is the fifth source of gravitational waves to be detected.

This latest event is the first detection of gravitational waves caused by two neutron stars colliding and thus the first one to have a visible source. The previous gravitational wave detections were traced to binary black holes, which cannot be seen through telescopes. This neutron star collision occurred relatively close to home, so within a few hours of receiving the notice from LIGO/Virgo, scientists were able to point telescopes in the direction of the event and get a clear picture of the light.

#gravitationalwaves #science #physics #space #LIGO #DECam #DarkEnergySurvey #astrophysics #kilonova
Researchers set up a sample beneath the A2D2 accelerator to test the electron beam.

A2D2, the Accelerator Applicaton Development and Demonstration project, helps Fermilab and partners explore new applications for compact linear accelerators that are only a few feet long (instead of a few hundred feet long). #science #physics #particles #STEM #fermilab #accelerators
Mr. Freeze in action at #Fermilabs50th Open House.
A fond memory from our September Open House celebrating #Fermilabs50th!
Check out this fantastic piece of equipment on a test stand in one of our Industrial Buildings!

#science #physics #LHC #fermilab #particles #STEM
Working hard on the Muon g-2 experiment.

#science #physics #particles #STEM
This detector is actual size!

#STEM #science #physics #particles #xkcd
Guest photo by Marty Murphy - @mjmphotographic. This view from Fermilab's Wilson Hall has a ton of compass plants in bloom in the foreground and #Chicago in the background.
Take a quick look inside the ICARUS building!

#science #physics #STEM #technology #neutrinos
#Eclipse2017 as seen from Fermilab. 
#eclipse #science
There's more than one way to view an #eclipse! Our staff photographer punched pinholes in the shape of the Fermilab logo, capturing dozens of tiny eclipses. Photo by our Chief Research Officer, Joe Lykken.

#eclipse2017 #fermilab #science
#ThrowbackThursday to Fermilab's volleyball team in 1981.

#oldschoolcool #Fermilabs50th #lablife #TBT