LHAASO in China's Sichuan begins scientific observation of very high energy cosmic rays

Aerial photo provided by Institute of High Energy Physics of Chinese Academy of Sciences shows the Water Cherenkov Detector in the Large High Altitude Air Shower Observatory (LHAASO) in Daocheng County, southwest China's Sichuan Province, Feb. 22, 2019. The LHAASO recently began scientific observation of very high energy cosmic rays as it launched operation of its first set of detectors. (Xinhua)