Located 2,400 meters under the Earth’s surface, the Deep Underground and Ultra-low Radiation Background Facility for Frontier Physics Experiments (DURF) is the world’s deepest underground laboratory.
In December 2020, Tsinghua University and Yalong River Hydropower Development Company, Ltd. began work on a daring project under Jinping Mountain in Sichuan’s Liangshan Yi Autonomous Prefecture. Designed to facilitate China’s research in relevant frontier fields, such as particle physics, nuclear astrophysics, and life sciences, the DURF reportedly provides the cleanest space on Earth to study the invisible substance known as dark matter, as the extreme depth it is located at (2,400 meters underground) helps block most of the cosmic rays that usually interfere with the observation of dark matter.
