{"page":"\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/resources-572d6a42.css\" /\u003e\n\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/lp_boclips_stylesheets-f4d0de30.css\" media=\"all\" /\u003e\n\u003cdiv data-title='Lab in old gold mine could unlock mysteries of dark matter' data-url='/boclips/videos/5c54bc7cd8eafeecae12d07a' data-video-url='/boclips/videos/5c54bc7cd8eafeecae12d07a' id='bo_player_modal'\u003e\n\u003cdiv class='boclips-resource-page modal-dialog panel-container'\u003e\n\u003cdiv class='react-notifications-root'\u003e\u003c/div\u003e\n\u003cdiv class='rp-header'\u003e\n\u003cdiv class='rp-type'\u003e\n\u003ci aria-hidden='true' class='fai fa-regular fa-circle-play'\u003e\u003c/i\u003e\nVideo\n\u003c/div\u003e\n\u003ch1 class='rp-title' id='video-title'\u003e\nLab in old gold mine could unlock mysteries of dark matter\n\u003c/h1\u003e\n\u003cdiv class='rp-actions'\u003e\n\u003cdiv class='mr-1'\u003e\n\u003ca class=\"btn btn-success\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_link_boclips\" data-remote=\"true\" href=\"/subscription/new\"\u003e\u003cspan\u003e\u003cspan\u003eGet Free Access\u003c/span\u003e\u003cspan class=\"\"\u003e for 10 Days\u003c/span\u003e\u003cspan\u003e!\u003c/span\u003e\u003c/span\u003e\u003c/a\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-body'\u003e\n\u003cdiv class='rp-info'\u003e\n\u003cdiv aria-label='Hide resource details' class='rp-hide-info' role='button' tabindex='0'\u003e\u0026times;\u003c/div\u003e\n\u003ci aria-label='Expand resource details' class='rp-expand-info fai fa-solid fa-up-right-and-down-left-from-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003ci aria-label='Compress resource details' class='rp-compress-info fai fa-solid fa-down-left-and-up-right-to-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003cdiv class='rp-rating'\u003e\n\u003cspan class='resource-pool'\u003e\n\u003cspan class='pool-label'\u003ePublisher:\u003c/span\u003e\n\u003cspan class='pool-name'\u003e\n\u003cspan class='text'\u003e\u003ca data-publisher-id=\"30356011\" href=\"/search?publisher_ids%5B%5D=30356011\"\u003eCurated Video\u003c/a\u003e\u003c/span\u003e\n\u003c/span\u003e\n\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-description'\u003e\n\u003cspan class='short-description'\u003eNestled nearly 5-thousand feet (1,524 metres) beneath the earth in the gold boom town of Lead, South Dakora, is a laboratory that could help scientists answer some pretty heavy questions about life, its origins and the universe.It's hard...\u003c/span\u003e\n\u003cspan class='full-description hide'\u003eNestled nearly 5-thousand feet (1,524 metres) beneath the earth in the gold boom town of Lead, South Dakora, is a laboratory that could help scientists answer some pretty heavy questions about life, its origins and the universe.\u003cbr/\u003eIt's hard to spot from the surface. \u003cbr/\u003eLooking around the rustic town, there are far more nods to its mining past than to its scientific future, but on Wednesday, part of the Homestake Gold Mine officially became an underground campus where the elusive material called dark matter might finally be detected.\u003cbr/\u003e\"This year, 2012, is going to be a very significant year because we get to turn the ... detector on and know very soon whether we have actually found dark matter or not,\" said Rick Gaitskell, a scientist with Brown University. \u003cbr/\u003eGaitskell has worked alongside dozens of scientists over the past few years to move forward with the Large Underground Xenon experiment, or LUX, the world's most sensitive dark matter detector.\u003cbr/\u003eFor most people, dark matter is a term that made their eyes glaze over in science class. But for Gaitskell and other scientists, it's the mystery meat of existence.\u003cbr/\u003eRegular matter, such as people and planets, for example, make up about four percent of the total mass-energy of the universe. \u003cbr/\u003eScientists estimate that dark matter makes up about 25 percent.\u003cbr/\u003eScientists know it exists by its gravitational pull but, unlike regular matter and antimatter, dark matter is undetectable. \u003cbr/\u003eGaitskell, who said he's been \"hunting dark matter\" for 23 years, and his colleagues know only that it could explain why the universe isn't made up equally of matter and antimatter. \u003cbr/\u003eThat, in turn, could explain how the world as we know it came to be.\u003cbr/\u003eGaitskell was among a handful of scientists on Wednesday who greeted South Dakota Governor Dennis Daugaard and dozens of scientists and journalists visiting the lab. \u003cbr/\u003eThe VIP guests took the 11-minute ride down a shaft that had been used by countless miners for more than a century.\u003cbr/\u003eBeneath the earth are 370 miles (595 kilometres) of tunnels over 7,700 acres. \u003cbr/\u003eThe new lab takes up about 10-thousand square feet (0.2 acres), leaving plenty of room for expansion. \u003cbr/\u003eThe once-grimy mine has been washed clean and painted white. \u003cbr/\u003eConcrete paths were poured for easier walking, and clean rooms ensure that the experiments won't be tainted.\u003cbr/\u003eNow the site is ideal for the search for dark matter, according to Kevin Lesko, of Lawrence Berkley National Lab, who is the principal investigator for the Sanford Underground Research Facility. \u003cbr/\u003eDark matter is too sensitive to detect in normal laboratories, but one so far underground would help shield it from pesky cosmic radiation. \u003cbr/\u003eAlso, the LUX detector is submerged in water, further insulating it.\u003cbr/\u003eThe unveiling was a long time coming: The mine opened during the Black Hills' gold rush in 1876 and outlasted many counterparts. \u003cbr/\u003eIn the late 1990s, it employed about one thousand people, but as the value of gold dropped, hundreds of miners gradually lost their jobs. \u003cbr/\u003eThe mine shuttered for good in 2003.\u003cbr/\u003eOne local business owner, Liz Tiger, said she was glad that the search for dark matter was reviving the town. \u003cbr/\u003e\"The economy up here really died after Homestake shut down. And so, in order just to save this town, save Main Street up here - I'm really excited for that.\"\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='action-container flex justify-between'\u003e\n\u003cbutton aria-expanded='false' aria-label='Read more description' class='rp-full-description' type='button'\u003e\n\u003ci class='fai fa-solid fa-align-left'\u003e\u003c/i\u003e\n\u003cspan id='read_more'\u003eRead More\u003c/span\u003e\n\u003c/button\u003e\n\u003cdiv class='rp-report'\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv aria-labelledby='resource-details-heading' class='rp-info-section'\u003e\n\u003ch2 class='title' id='resource-details-heading'\u003eResource Details\u003c/h2\u003e\n\u003cdiv class='rp-resource-details clearfix'\u003e\n\u003cdiv class='detail'\u003e\n\u003cdl\u003e\n\u003cdt\u003eCurator Rating\u003c/dt\u003e\n\u003cdd\u003e\u003cspan class=\"star-rating\" aria-label=\"3.5 out of 5 stars\" role=\"img\"\u003e\u003ci class=\"fa-solid fa-star text-action\" 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