今天这一幕，钱老您一定看得到！

Core Viewpoint - The launch of Shenzhou 21 is a significant event for China's space program, coinciding with the 16th anniversary of the death of Qian Xuesen, a foundational figure in Chinese aerospace history [1][16]. Group 1: Historical Context - Qian Xuesen, upon learning of the founding of the People's Republic of China in 1949, began planning his return from the United States, where he was a prominent figure at the California Institute of Technology [3]. - Despite facing significant obstacles from the U.S. government, including wrongful imprisonment, Qian Xuesen remained determined to return to China, ultimately succeeding in 1955 [5][6]. Group 2: Contributions to Aerospace - After returning to China, Qian Xuesen played a crucial role in establishing and planning the country's rocket and space programs, significantly contributing to the development of aerospace talent in China [8]. - He was instrumental in the successful launch of China's first missile, Dongfeng-1, in 1960, marking the beginning of China's missile program [11]. - Qian Xuesen introduced the term "aerospace" in 1967, standardizing the terminology for China's space exploration activities [11][12]. Group 3: Legacy and Recognition - The successful launch of Shenzhou 5 in 2003, which carried China's first astronaut Yang Liwei, was a milestone that Qian Xuesen had anticipated, as he was honored by astronauts upon their return [13][14]. - The Shenzhou missions continue to honor Qian Xuesen's legacy, with each returning astronaut visiting his home to report their success, reflecting the ongoing impact of his contributions to China's space endeavors [16].