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 Shenzhou-20 astronaut team successfully completed their second extravehicular activity (EVA) lasting approximately 6.5 hours [1][9] - The installation of an automatic foot limit adapter and interface connector was a key task, which is expected to reduce future EVA times by about 40 minutes [5][7] - The team also installed a space debris protection device and conducted inspections of external equipment during the EVA [9][16] Group 1 - The Shenzhou-20 mission has been ongoing for over two months, focusing on various space science experiments [13] - The space debris issue has become increasingly prominent due to the rise in human space activities, posing risks to the space station [14][16] - The Chinese space station has improved its collision warning and avoidance processes to enhance its ability to prevent collisions [16][18] Group 2 - The Shenzhou-20 mission has completed a total of seven installations of space debris protection devices, providing reinforcement for critical components of the space station [16] - The research team has developed a monitoring and positioning system for potential leaks due to impacts, increasing the astronauts' response time to emergencies [18] - International cooperation has been established to share information and maintain the safety of spacecraft in orbit [18]