A 2,400-meter-deep physics laboratory in southwest China's Sichuan Province became operational on Thursday, making it the deepest and largest underground lab in the world.
The Deep Underground and Ultra-low Radiation Background Facility for Frontier Physics Experiments (DURF) is located beneath Jinping Mountain in Sichuan's Liangshan Yi Autonomous Prefecture and it's the second phase of China Jinping Underground Laboratory.
Scientists believe the laboratory provides a "clean" space for them to pursue the invisible substance known as dark matter. They said the extreme depth helps block most cosmic rays that mess with the observation.
The DURF will become a world-class interdisciplinary deep underground scientific research center integrating multiple disciplines.
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