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

Photo taken on April 26, 2019 shows the unveiling of Tianfu Cosmic Ray Research Center in Chengdu City, southwest China's Sichuan Province. The LHAASO recently began scientific observation of very high energy cosmic rays as it launched operation of its first set of detectors. (Xinhua/Jin Liwang)