After two years of extensive upgrades, the Large Hadron Collider was warming up on March 21 for another round of experiments when a circuit controlling one of its massive magnets shorted out. Dismayed ...

All the focus on the LHC is generally on the enormous, 26km circumference of the main accelerator ring. But, according to Paul Collier, the head of CERN’s Beams Department, the protons that form the ...