Core Points - The Shenzhou-20 crew, consisting of Chen Dong, Chen Zhongrui, and Wang Jie, has been actively conducting scientific experiments in space, with significant progress reported in various fields [1] Group 1: Material Science - The crew completed the entry of the material exposure experiment device and the recovery and storage of the third batch of experimental samples [2] - The material exposure experiment aims to reveal mechanisms of material structure damage, performance degradation, and functional failure in extreme space environments, promoting the application of advanced materials for flexible solar wings, space lubrication materials, lunar base construction materials, and neutron shielding materials for precision electronic devices [2] Group 2: Aerospace Medicine - In the field of aerospace medicine, the crew utilized a fine motion measurement device to conduct sliding tests, which will aid in studying the changes in fine motor control and adaptive learning mechanisms under microgravity conditions [7] - The crew performed cardiac and vascular ultrasound examinations and used a neuromuscular stimulator for muscle relaxation and atrophy protection to counteract the physiological effects of weightlessness [15] Group 3: Microgravity Physics - Experiments related to microgravity combustion science are being conducted in an enclosed combustion chamber, which supports combustion experiments with various fuels by changing internal experimental inserts [9] Group 4: Station Management - The crew completed microbial monitoring tasks by sampling different media such as gas, surfaces, and water systems to assess microbial species and growth conditions, providing a basis for microbial control within the station [11] - Station management tasks included organizing cargo transfers, inventory checks of medications, and material management [13]

Core Points - The Shenzhou 20 crew has been in orbit for two months since April 25, successfully adapting to the microgravity environment and completing multiple space science experiments and tasks [1][5][7] - The crew conducted the first-ever space regeneration experiment on planarians, exploring the effects of microgravity and radiation on their regeneration mechanisms [5] - The Shenzhou 20 crew performed their first extravehicular activity, installing a space debris protection device and conducting inspections of external equipment [5][7] Group 1 - The Shenzhou 20 crew, consisting of Chen Dong, Chen Zhongrui, and Wang Jie, met with the Shenzhou 19 crew in space, marking the sixth "space rendezvous" in China's space history [3] - The two crews completed an in-orbit handover on April 27, continuing their collaborative efforts in the Chinese space station [3] - The Shenzhou 20 crew is currently in good condition, and their various space science experiments are progressing steadily [7] Group 2 - The crew has been involved in multiple projects, including studies on trust and collaboration mechanisms, visual motion gravity characterization, and microgravity relationship cognition [7] - They utilized ultrasound diagnostics to examine blood vessels and conducted various tests related to memory, strength, and heavy object handling [7] - Research on the effects of microgravity on microorganisms, specifically Streptomyces, was also conducted, focusing on growth, differentiation, and biological activity [7]

Core Insights - The Shenzhou 20 astronaut crew, consisting of Chen Dong, Chen Zhongrui, and Wang Jie, has been successfully conducting various space science experiments for over 50 days in orbit, with all crew members in good condition [1] Group 1: Medical Experiments - The crew has completed multiple research projects in the field of aerospace medicine, utilizing equipment such as visual function measurement devices and eye trackers to conduct tests on "trust and collaboration mechanisms," "visual motion gravity characterization," "metacognitive monitoring research," and "microgravity relationship cognition" [1] - Ultrasound diagnostics were performed to examine blood vessels, collecting hemodynamic parameters under different durations in orbit for further research [3] - The crew conducted fine motor measurement tests, including memory sliding tests, strength tests, and heavy object tests, to accumulate data on the changes in fine motor control and cognitive mechanisms under microgravity conditions [3] Group 2: Biological and Physical Experiments - Research on the effects of microgravity on microorganisms is ongoing, focusing on the growth, development, differentiation, and biological activity of Streptomyces, as well as population succession changes and mechanisms [4] - The crew utilized a scientific glovebox to collect liquid culture samples, which were then frozen for return to Earth [4] - In the physical domain of microgravity, the crew completed maintenance tasks such as replacing sampling covers in the combustion cabinet and cleaning the container-free cabinet [4] Group 3: Health Monitoring - The Shenzhou 20 crew conducted traditional Chinese medicine diagnostics, 12-lead electrocardiograms, and dynamic blood pressure monitoring, while also engaging in physical exercise to counteract the physiological effects of weightlessness [6]