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It is one of the biggest and most controversial experiments to be carried out in recent times. On September 10, a machine costing a staggering $7.75 billion (Rs 31,000 crore) will be fired up to recapture conditions not seen since the birth of the universe almost 14 billion years ago. The machine, located at CERN, a Geneva-based nuclear research lab, will carry on the experiment inside a 27-km tunnel deep beneath the French-Swiss border.