刷新两个“最”！神二十乘组“太空出差”渐入尾声 | 中国空间站周记上“新”

Core Insights - The Shenzhou-20 crew has been in orbit for over 170 days, with their mission nearing completion, and various space science experiments are being conducted as planned [1] Group 1: Space Science Experiments - In the field of aerospace medicine, the crew has conducted multiple experiments including behavioral tests related to perception and cognitive abilities during long-term space flight [1] - The crew has also collected and preserved saliva samples to study the impact of long-term space flight on gut microbiota and metabolism [1] - In materials science, the crew has completed sample cleaning and maintenance tasks, and installed microbial control technology samples [3] Group 2: Health Monitoring and Maintenance - The crew has performed ultrasound examinations on abdominal, muscular, and cardiovascular health, providing data for ground research teams to monitor astronaut health [6] - Continuous equipment checks and station management tasks are being carried out to ensure operational efficiency [6] Group 3: Mission Accomplishments - The Shenzhou-20 crew has successfully completed the in-orbit rotation with the Shenzhou-19 crew and has engaged in various scientific and technical tasks [9] - The crew has conducted four extravehicular activities, including the installation of space debris protection devices and inspections of external equipment [11] - The crew is preparing for the arrival of the Shenzhou-21 crew and is organizing research samples and materials for return to Earth [13]