California Institute of Technology is small but green, and its architectural style also highlights the flavor of science and technology. It is simple, restrained and neat. Qian Xuesen, the father of spaceflight in China, studied for 16 years. During his tenure, he participated in the research and development of the United States "Manhattan" nuclear program, which shows the profound academic strength of California Institute of Technology. In the Convention Center of the college, we are fortunate to see the papers on space science research from many famous universities. The academic status of Oxford, Cambridge, Harvard, MIT, Imperial Institute of Technology, Berkeley and other colleges can be seen.