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Take a ride into the Homestake Mine in Lead, SD where an elevator descends 4,850 feet underground  to the Sanford Underground Laboratory – the deepest underground clean room facility in the United States where scientists search for Dark Matter and Neutrinos. At the bottom of the elevator  physicists seek to build more and more sensitive instruments in the effort to measure and document neutrinos  and dark matter  they must go to greater and greater lengths to avoid the contamination of background radiation and cosmic rays.  Stay tuned for a look inside the Sanford Underground Laboratory’s clean room and the detectors themselves.