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Scientists ready dark matter search at Homestake lab

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LEAD (AP) -- Scientists hoping to detect dark matter deep in a former South Dakota gold mine are hoping to flip the switch on their experiment next month.

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Sanford Lab at Homestake science liaison director Jaret Heise tells the Black Hills Pioneer that scientists next week will begin cooling the Large Underground Xenon detector's xenon gas into a liquid form using liquid nitrogen.

The LUX detector sits in a 72,000-gallon purified water tank nearly a mile beneath the earth's surface. The detector could help scientists answer age-old questions about the universe and its origins.

Scientists know dark matter exists by its gravitational pull but, unlike regular matter and antimatter, it's so far been undetectable.

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