Xinhua photos of the day

Yang Chen-ning, a Nobel prize-winning physicist, listens to questions raised by a student at the opening ceremony of the first CAS-Leopoldina Joint Conference in Beijing, capital of China, Sept. 9, 2019. The Chinese Academy of Sciences (CAS) and the German Academy of Sciences Leopoldina signed the Beijing Declaration on Monday at the opening ceremony of the first CAS-Leopoldina Joint Conference "Science for Future: All Starts with Basic Research," pledging to step up basic research and promote communication among young researchers from the two countries. (Xinhua/Jin Liwang)