神舟二十一号载人飞船顺利撤离空间站组合体 神舟二十号乘组踏上回家之旅

Core Points - Shenzhou 21 manned spacecraft successfully separated from the space station complex on November 14, 2023, at 11:14 AM Beijing time [1] - The crew members of Shenzhou 20, including Chen Dong, Chen Zhongrui, and Wang Jie, are preparing to return home [1] - Shenzhou 20's return capsule was found to have minor cracks in the window glass, likely caused by external impacts from space debris, which does not meet the safety conditions for a manned return [1] Summary by Categories Manned Spacecraft Operations - Shenzhou 21 has successfully completed its separation from the space station, marking a significant milestone in China's manned space program [1] - The crew of Shenzhou 20 will continue to conduct relevant experiments while remaining in orbit due to safety concerns regarding the return capsule [1] Safety and Technical Assessment - A comprehensive evaluation, including photo interpretation, design review, simulation analysis, and wind tunnel tests, led to the conclusion about the cracks in Shenzhou 20's window glass [1] - The identified issue with Shenzhou 20's return capsule emphasizes the importance of safety protocols in manned space missions [1]