A close look at world's deepest laboratory in Sichuan(1/7)

Photo taken on Oct. 26, 2022 shows the exterior view of China Jinping Underground laboratory, the world's deepest laboratory, in southwest China's Sichuan Province. (Photo: China News Service/Wang Lei)

The lab is located at 2,400 meters under the surface of Jinping Hydropower Station.

It has a store of xenon, one of the few materials that interact with dark matter, and the cosmic rays that commonly interfere with attempts to observe dark matter generally cannot penetrate to such a depth underground.

A series of dark matter detection experiments were conducted in the lab.

A scientist monitors an experiment in China Jinping Underground laboratory in southwest China's Sichuan Province, Oct. 26, 2022. (Photo: China News Service/Wang Lei)

A scientist selects materials for radiation detection in China Jinping Underground laboratory in southwest China's Sichuan Province, Oct. 26, 2022. (Photo: China News Service/Wang Lei)

A scientist inspects experimental equipments in China Jinping Underground laboratory in southwest China's Sichuan Province, Oct. 26, 2022. (Photo: China News Service/Wang Lei)

Scientists conduct an experiment in China Jinping Underground laboratory in southwest China's Sichuan Province, Oct. 26, 2022. (Photo: China News Service/Wang Lei)

A scientists conducts an experiment in China Jinping Underground laboratory in southwest China's Sichuan Province, Oct. 26, 2022. (Photo: China News Service/Wang Lei)

Photo taken on Oct. 26, 2022 shows the entrance to China Jinping Underground laboratory, the world's deepest laboratory, in southwest China's Sichuan Province. (Photo: China News Service/Wang Lei)