2天→6.5小时→3.5小时，跨越式发展！中国空间站永远值得期待

Core Points - The Shenzhou 21 manned spacecraft successfully docked with the Tianhe core module of the Chinese space station on November 1, marking the seventh "space meeting" in China's space history [1][7] - The docking process took approximately 3.5 hours, setting a new record for the fastest docking between a Shenzhou spacecraft and the space station [3][19] - The Shenzhou 21 crew will stay at the space station for about six months, conducting various scientific and application tasks [9] Group 1: Docking Process - The Shenzhou 21 spacecraft underwent four orbital maneuvers before successfully docking, with the entire process taking about 3.5 hours [3][5] - This docking time has been reduced from the previous 6.5 hours, showcasing advancements in docking technology [5][17] - The new docking mode requires higher precision in both the space station's attitude control and the rocket's launch accuracy [11][13] Group 2: Technological Advancements - The ability to achieve a 3.5-hour docking time represents a significant leap in China's manned spaceflight capabilities [19] - The improvements in docking efficiency enhance astronaut comfort and safety, as well as overall mission efficiency [19] - This advancement is crucial for future deep space missions, including manned lunar and Mars exploration [19] Group 3: Future Plans - The Shenzhou 21 crew will engage in tasks such as extravehicular activities, cargo operations, and installation of space debris protection devices [9] - The successful docking and subsequent operations will contribute to the comprehensive application benefits of the space station [9]