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 various space science experiments being conducted as part of their mission [1] Group 1: Space Science Experiments - In the field of aerospace medicine, the crew has conducted multiple behavioral tests using a laptop and related equipment, focusing on visual perception and cognitive abilities during long-term spaceflight [2] - The crew has also collected and preserved saliva samples to study the impact of long-duration spaceflight on gut microbiota and metabolism [4] - Ongoing experiments in space materials science include sample cleaning and maintenance of experimental equipment [6] 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 [9] - Continuous equipment checks and station management tasks are being carried out to ensure operational efficiency [9] Group 3: Mission Accomplishments and Future Tasks - Since arriving at the space station on April 24, 2025, the Shenzhou 20 crew has completed various scientific experiments and technical tasks, including in-orbit rotation with the Shenzhou 19 crew and medical training [10] - The crew has conducted four extravehicular activities, including the installation of space debris protection devices and inspections of external equipment [12] - Preparations for the arrival of the Shenzhou 21 crew and the return mission are underway, including physical training and packaging of research samples for return to Earth [14]