Aerial view shows the Water Cherenkov Detector in the Large High Altitude Air Shower Observatory (LHAASO) in Daocheng County, southwest China's Sichuan Province, June 28, 2022. (Photo: China News Service/Liu Zhongjun) 

An observatory for detecting cosmic rays was built in mountains of the eastern part of Qinghai-Tibet Plateau at an average altitude of 4,410 meters.

LHAASO consists of 5,216 electromagnetic particle detectors and 1,188 Muon detectors covering an area of 1.36 square kilometers. The water Cherenkov light detector array with an effective area of more than 78,000 square meters. This is the third generation of ultra high cosmic rays observatory in China. (ECNS.cn)

Aerial view shows the Water Cherenkov Detector in the Large High Altitude Air Shower Observatory (LHAASO) in Daocheng County, southwest China's Sichuan Province, June 28, 2022. (Photo: China News Service/Liu Zhongjun)

Aerial view shows the detectors in the Large High Altitude Air Shower Observatory (LHAASO) in Daocheng County, southwest China's Sichuan Province, June 28, 2022. (Photo: China News Service/Liu Zhongjun)

Aerial view shows the detectors in the Large High Altitude Air Shower Observatory (LHAASO) in Daocheng County, southwest China's Sichuan Province, June 28, 2022. (Photo: China News Service/Liu Zhongjun)

Aerial view shows the detectors in the Large High Altitude Air Shower Observatory (LHAASO) in Daocheng County, southwest China's Sichuan Province, June 28, 2022. (Photo: China News Service/Liu Zhongjun)

Aerial view shows the detectors in the Large High Altitude Air Shower Observatory (LHAASO) in Daocheng County, southwest China's Sichuan Province, June 28, 2022. (Photo: China News Service/Liu Zhongjun)