Recently, the China Manned Space Engineering Office released a message. The space mission of China is about to start, and the timetable for related tasks has been determined. The space station was built and put into use in 2022. The 2020 Long March 5B launch vehicle will launch the space station core module and will be officially opened in 2022. At the same time, the selection of space station astronauts is also carried out in an orderly manner. The news is exciting. It is necessary to know that the construction of the space station is the third step of the "three-step" plan for China's manned spaceflight project. If the space station is built and put into use, it will become the base for China's space science and new technology research experiments.