Today, the Tevatron accelerator at the Fermi National Accelerator Laboratory just outside Chicago has closed, ending its 28 years of smashing protons into antiprotons. The reasons for closing the 3.9 mile particle accelerator ring in Batavia, Illinois include budgetary constraints and its unfortunately obsolete status after the completion of CERN's Large Hadron Collider in Switzerland.
The accelerator's closing was celebrated by a live webcast of the shutdown and a lab-wide party. Lizzie Wade was there live to see the closing, and mourn the loss of America's greatest particle smasher along with the scientists.
Click to check out her photos and impressions from the event.