Qian Xuesen was a prominent Chinese scientist and engineer, known for his significant contributions to the fields of aerodynamics and rocket technology. Born in 1911, he studied at MIT and later worked with NASA in the United States. His expertise helped advance the development of missiles and space exploration. After returning to China in 1955, Qian played a crucial role in establishing the country's space program. He was instrumental in launching China's first satellite, Dong Fang Hong 1, in 1970. His work laid the foundation for China's achievements in space and made him a national hero.