Media ID: 55353960
Caption:
Caption:
This file photo taken on July 19, 2013 shows a worker standing below the Compact Muon Solenoid (CMS), a general-purpose detector at the European Organisation for Nuclear Research (CERN) Large Hadron Collider (LHC), during maintenance works on July 19, 2013 in Meyrin, near Geneva, A.F.P,