Share the QR code < / P > < p > with wechat scanning code to friends and circles of friends < / P > < p > < / P > < p > experts interpret why the US satellite approached the Chinese space station twice this year, and why the satellite chain launched by us SpaceX approached the Chinese space station twice this year < p > when interviewed by the global times, Zhang Baoxin, an aviation military expert, said that it is certain that SpaceX took full responsibility for the two "dangerous approaches". Any spacecraft flying in space needs to report the trajectory. Theoretically, everyone flies on their own trajectory, and it is impossible to have collision or close contact. China has always strictly abided by relevant international treaties and regulations. In addition, there are astronauts in our space station. It is impossible to take the initiative to approach American satellites < p > Zhang Baoxin believes that this may be a tentative survey of China's aerospace technology. "When I approach you to danger, I want to see if you can find it. What technology will be adopted to avoid it after discovery and whether it can return to the original orbit after avoidance. Since SpaceX also has relevant technologies, we can know the development level of China's space exploration technology, space station response speed and avoidance threshold through comparison." < p > as for some netizens who suspected that the two approaches were to prepare for the "space war" in the future, Zhang Baoxin said that if you guess from this perspective, it can only be said that this is the most cutting-edge exploratory stage of the "space war", not even the investigation stage. After all, even if something goes wrong now, you can throw the pot on SpaceX, a "private enterprise" < p > Zhang Baoxin also said that although SpaceX's satellite chain is under the banner of civil use, it has actually become a supplier of the U.S. Department of defense. After all, the cost of communication in no man's land is very high from a civilian point of view. It itself serves the U.S. military. It can be said that it is indeed a non-governmental project, but most of the main investors and users of the project have national defense background