Steve Myers, CERN's Director for Accelerators and Technology speaks during a press conference on the LHC (large hadron collider)  restart at CERN (the European particle physics laboratory) in Meyrin, near Geneva, Switzerland, on Monday, Nov. 23, 2009. Scientists turned on the Large Hadron Collider on Friday night, Nov. 20, 2009, for the first time since the machine suffered a failure more than a year ago and had to be shut down. AP Photo logo AP Photo 27 months ago

Steve Myers, CERN's Director for Accelerators and Technology speaks during a press conference on the LHC (large hadron collider) restart at CERN (the European particle physics laboratory) in Meyrin, near Geneva, Switzerland, on Monday, Nov. 23, 2009. Scientists turned on the Large Hadron Collider on Friday night, Nov. 20, 2009, for the first time since the machine suffered a failure more than a year ago and had to be shut down.