Just two days after the Large Hadron Collider (LHC) reached a major milestone by producing 1.18 TeV (more than one trillion electron volts) of energy, the particle physics lab CERN had to cut power to one of the accelerator's sites following a problem with a power supplier. The outage did not affect the cryogenics required for operation, and a CERN spokeswoman in Geneva, Switzerland, was optimistic that the power would be back up by 6:30 p.m. local time.