European Center for Nuclear Research (CERN) scientists control a computer screen monitoring the Atlas experiment of the first protons injected in the Large Hadron Collider (LHC) during its switch-on operation at CERN's press center on Wednesday, Sept. 10, 2008, near Geneva, Switzerland. An international group of scientists plan to smash particles together to create, on a small scale, reenactments of the "Big Bang."
(Photo: AP Photo/Fabrice Coffrini, Pool)
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