新华社快讯：目前，神舟二十一号航天员乘组在轨状态良好，正按计划完成各项既定工作。神舟二十号 飞船将继续留轨开展相关试验。 ...

新华社快讯：目前，神舟二十一号航天员乘组在轨状态良好，正按计划完成各项既定工作。神舟二十号 飞船将继续留轨开展相关试验。 ...

来源｜央视新闻 编辑 ｜ 钉钉 据中国载人航天工程办公室消息，目前，长征二号F遥二十二运载火箭已完成推进剂加注，计划于北京 时间2025年11月25日 ，在我国酒泉卫星发射中心发射神舟二十二号飞船。 神舟二十一号航天员乘组在轨工作正常、状态良好。 ...

Core Points - The Shenzhou 20 astronaut crew is scheduled to return on November 14 aboard the Shenzhou 21 spacecraft, with all crew members in good condition and preparations underway at the landing site [1] - The Shenzhou 20 mission lasted 203 days, during which the crew completed all planned tasks, achieving significant results in various scientific fields [2][4] Group 1: Mission Achievements - The crew conducted experiments in space life sciences, microgravity fundamental physics, space materials science, aerospace medicine, and new aerospace technologies, yielding phase results [2] - Notable achievements include the successful growth of high-quality protein crystals, which may provide potential targets for cancer treatment, and the heating of tungsten alloy to 3100 degrees Celsius, setting a new record for international space materials science experiments [2] - The crew also discovered charged colloids crystallizing into long-lived metastable structures in microgravity [2] Group 2: Additional Activities - During the mission, the crew took care of zebrafish and a space vegetable garden, contributing to the life atmosphere of the space station and providing valuable experimental data [4] - In July, the Shenzhou 20 received a cargo delivery from the Tianzhou 9 spacecraft, which included supplies for the astronauts and new extravehicular spacesuits, along with valuable data from the evaluation of existing suits [7] - The crew completed four extravehicular activities and seven payload transfer tasks, including the installation of space debris protection devices and external auxiliary equipment, enhancing the efficiency of extravehicular operations [10] Group 3: Delays and Collaboration - The return of the Shenzhou 20 was delayed due to a suspected impact from small space debris, allowing the crew to collaborate with the Shenzhou 21 crew on in-orbit scientific experiments [13]

Core Points - The handover ceremony between the Shenzhou-20 and Shenzhou-21 astronaut crews took place on November 4, 2025, marking a significant event in China's space exploration efforts [1] - The transfer of the "key" to the Chinese space station symbolizes the continuity and inheritance of the Chinese space spirit [1] Summary by Categories Event Details - The handover ceremony involved the exchange of responsibilities between two astronaut crews, emphasizing the smooth and orderly transition [1] Symbolism - The act of handing over the "key" represents not only a logistical transition but also the ongoing legacy and spirit of China's achievements in space exploration [1]

Core Points - The Shenzhou-20 and Shenzhou-21 astronaut crews conducted a handover ceremony on November 4, where they exchanged the keys to the Chinese space station [1] - The Shenzhou-20 crew has completed all scheduled tasks and is set to return to the Dongfeng landing site on November 5 [1] - The China Manned Space Engineering Office reported that preparations for the astronauts' return are being made at the landing site and various testing systems [1]

Core Insights - The Chinese space station has successfully hosted the Shenzhou 20 crew for over 180 days, marking a significant milestone in its operational timeline [2][11] - The crew has conducted multiple extravehicular activities and various scientific experiments, showcasing advancements in space medicine and microgravity physics [4][6][7] - The upgraded space vegetable garden has yielded fresh produce, highlighting the success of agricultural experiments in space [9] Group 1: Crew Activities - The Shenzhou 20 crew has completed four extravehicular activities, demonstrating their capabilities and the station's operational success [4] - The crew has engaged in experiments related to trust and collaboration mechanisms, fine motor control, and emergency decision-making, contributing valuable data for future space missions [6] Group 2: Scientific Research - Ongoing experiments in inertial particle dynamics have revealed unique particle movement patterns in microgravity, indicating potential for further research [7] - The successful cultivation of vegetables in the upgraded space garden reflects advancements in space agriculture technology [9] Group 3: Future Prospects - As the Shenzhou 20 crew prepares to return to Earth, the arrival of the Shenzhou 21 crew signifies continued collaboration and research opportunities in the space station [11]

Core Viewpoint - The Shenzhou 21 manned spaceflight mission has officially commenced with a launch ceremony held at the Jiuquan Satellite Launch Center, highlighting China's ongoing advancements in space exploration and its commitment to the development of its space station [2] Group 1 - The Shenzhou 21 mission features astronauts Zhang Lu, Wu Fei, and Zhang Hongzhang, marking a continuation of China's manned spaceflight efforts [2] - Astronaut Zhang Lu, who previously participated in the Shenzhou 15 mission, expressed a poetic sentiment about returning to the space station, emphasizing the emotional connection and dedication of the crew [2]

Group 1 - The Shenzhou-21 manned spaceflight mission crew departure ceremony took place on October 31 at the Jiuquan Satellite Launch Center [2][4][6] - The astronauts participating in the mission are Zhang Lu, Wu Fei, and Zhang Hongzhang [8][10][12] - The ceremony was held at the Wentiang Pavilion in the Dream Garden of the launch center [14][16]

Core Viewpoint - The Shenzhou 21 mission features a notable astronaut, Zhang Hongzhang, who is a doctoral degree holder and a payload expert, marking him as the second payload expert from China to go to space after Gui Haichao from Shenzhou 16 [1][3]. Group 1: Role of Scientists in Space - Scientists, particularly payload experts, are selected for their ability to conduct important scientific experiments and technical tests in space that cannot be performed on Earth [4][6]. - Payload experts must have a strong background in specific scientific fields and undergo over two years of space training to operate experimental equipment and analyze data in the unique environment of space [4][6]. Group 2: Physical and Psychological Requirements - While the physical requirements for payload experts are lower than for astronauts and flight engineers, they still need to meet certain health standards, including the ability to withstand significant weight during launch and re-entry [7][9]. - Specific health conditions, such as dental issues or chronic diseases, disqualify candidates from becoming payload experts [10]. Group 3: Selection and Training Process - The selection process for payload experts involves a rigorous two-and-a-half-year training program that includes learning about spacecraft structure, emergency skills, and adapting to the physical sensations of space [11][13]. - After completing training, candidates must pass additional evaluations to ensure they can handle the physiological and psychological demands of space missions [13].