(250424) -- SHANGHAI, April 24, 2025 (Xinhua) -- Spacesuits are on display at the preview of a science exhibition marking the 10th Space Day of China at Shanghai World Expo Exhibition and Convention Center in east China's Shanghai, April 23, 2025. April 24 has been Space Day of China since 2016. The date marks the launch of China's first satellite "Dongfanghong-1" into space in 1970. Activities to mark the 10th Space Day of China will take place from April 24 to May 5 at the Shanghai World Expo Exhibition and Convention Center. (Xinhua/Zhang Jiansong)