One of the first collisions in the CMS detector at the record-high energy of 13 TeV, taken during testing for the second run of the Large Hadron Collider in late May. Image: CMS/CERN
October 13, 2015
One of the first collisions in the CMS detector at the record-high energy of 13 TeV, taken during testing for the second run of the Large Hadron Collider in late May. Image: CMS/CERN