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Associated Press
In this July 31, 2012 photo provided by Sanford Lab, Mikayla Thompson, of Yale University, works near the exterior of the water tank for the Large Underground Xenon experiment a mile beneath the earth’s surface in a shuttered gold mine in Lead, S.D.  The experiment, known as LUX, could begin collecting data as early as February _ and, if all goes as planned, that data could answer age-old questions about the universe and its origins, scientists said Monday, Nov. 19, 2012. (AP Photo/Courtesy of Sanford Lab, Matt Kapust)

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