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November 21, 2012
SIOUX FALLS, S.D. — Scientists hoping to detect dark matter deep in a former South Dakota gold mine have taken the last major step before flipping the switch on their more than $300 million experiment and say they may be ready to begin collecting data as early as February.
What's regarded as the world's most sensitive dark matter detector was lowered earlier this month into a 70,000-gallon water tank nearly a mile beneath the earth's surface, shrouding it in enough insulation to hopefully isolate dark matter from the cosmic radiation that makes it impossible to detect above ground.
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