Update: did you enjoy our April Fool’s day story? While we won’t be racing karts through the tunnel, we are gearing up for major works to prepare for HiLumi LHC and its new technologies. The image is based on a real 1991 CERN image of the monorail used to transport people and equipment in the tunnel during the lifetime of the Large Electron-Positron Collider (LEP), which preceded the LHC. Following on from the robotic mice, CERN engineers have now developed a super-charged kart to enable workers