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Wu Weiren, the chief designer of the lunar exploration project of China, presents the Team Gold Medal at the award ceremony of Royal Aeronautical Society (RAeS) in London, Britain, on Nov. 25, 2019. China's Chang'e-4 mission team on Monday received the only Team Gold Medal of the year awarded by Royal Aeronautical Society (RAeS) of the United Kingdom at its annual award ceremony held in London. (Photo by Ray Tang/Xinhua)