Group 1 - The Shenzhou-21 crew, consisting of astronauts Zhang Lu, Wu Fei, and Zhang Hongzhang, has been working in orbit for nearly 80 days, with multiple in-orbit tasks progressing steadily and the crew in good working condition [1] - The crew has been interacting closely with the onboard robot "Xiaohang," conducting tests such as touch interaction and autonomous flight to gather data for optimizing future robotic movement planning [1] - In the field of space medicine, the crew utilized a space Raman spectrometer to analyze metabolic components in urine samples, which will help refine the relevant metabolic indicator system and evaluation criteria [3] Group 2 - The crew collected saliva samples to study the impact of the space station environment on microbial populations, with plans for unified testing upon return [3] - A project investigating the relationship between the origin of genetic codes and chirality was completed, focusing on the chiral combinations of amino acids and nucleotides [5] - Ongoing research includes in-situ studies of lithium-ion batteries in microgravity and various experiments in combustion science and fluid physics [5] Group 3 - An emergency drill simulating internal depressurization of the space station was conducted, enhancing the crew's emergency response capabilities and coordination with ground support [7] - Routine medical checks, including hearing tests, were carried out as planned, alongside regular physical exercise such as running [7]

Core Insights - The Shenzhou-21 crew, consisting of astronauts Zhang Lu, Wu Fei, and Zhang Hongzhang, has been working and living in orbit for nearly two months, with multiple experimental projects underway in the national space laboratory [1] Group 1: Aerospace Medical Experiments - The Shenzhou-21 crew has utilized EEG equipment to gather data for projects such as "Metacognitive Monitoring Research" and "Group Brain Cognition-Emotion Analysis and Regulation," aiding ground researchers in ongoing studies [3] Group 2: Plant Growth Research - The Arabidopsis plant "Xiao Nan" has reappeared in the Wentian experimental module, previously serving as a "teaching assistant" in the "Tiangong Classroom" to help understand plant growth in space. In this mission, it will assist the research team in studying the regulatory networks of plant stem cells [5] Group 3: Microgravity Physics Experiments - The crew has completed the disassembly and replacement of experimental samples in the fluid physics experiment cabinet, changed gas sampling caps in the combustion science experiment cabinet, and performed maintenance on the experimental chamber and axial mechanism electrodes [7] Group 4: Lithium-Ion Battery Research - A project titled "In-Situ Electrochemical Optical Research of Lithium-Ion Batteries for Space Applications" has been initiated, leveraging the expertise of payload specialist Zhang Hongzhang to conduct in-situ optical observations of lithium dendrite growth in a microgravity environment [9] Group 5: Health Maintenance and Equipment Checks - The crew conducted regular maintenance on onboard equipment and upgraded some software. Additionally, they performed medical checks including bone density measurements, electrocardiograms, blood pressure checks, and vision assessments to monitor their health status in orbit [11]

Group 1 - The Shenzhou 21 crew, consisting of astronauts Zhang Lu, Wu Fei, and Zhang Hongzhang, has been working and living in orbit for nearly two months, with multiple experimental projects underway in the national space laboratory [1] - In the field of aerospace medicine, the crew has utilized EEG equipment to gather data for projects such as "Metacognitive Monitoring Research" and "Group Brain Cognition-Emotion Analysis and Regulation," aiding ground researchers in ongoing studies [1] - The crew has conducted regular maintenance on onboard equipment and upgraded some software, while also performing health checks including bone density measurement, electrocardiogram, blood pressure checks, and vision function assessments to monitor their health status in orbit [9] Group 2 - In the Wentian experimental module, the plant Arabidopsis thaliana, referred to as "Little Nan," has reappeared, assisting the research team in studying the molecular network of plant stem cell regulation [3] - The crew has completed the disassembly of complex fluid experiment modules in the fluid physics experiment cabinet and replaced experimental samples, as well as conducted maintenance on the combustion science experiment cabinet [5] - A project focusing on the in-situ electrochemical optical research of lithium-ion batteries has been initiated, leveraging the expertise of payload specialist Zhang Hongzhang to conduct optical observations of lithium dendrite growth in a microgravity environment [7]