This photo, taken on April 23, 2025, shows students operating a simulated Mars rover during a space carnival at Nanjing University of Aeronautics and Astronautics.

China designated April 24 as its Space Day in 2016 to mark the successful launch of its first satellite, Dongfanghong-1, on April 24, 1970. A wide range of space-themed activities took place across the province on the 10th Space Day.