Core Viewpoint - The Shenzhou 21 crew is actively engaged in various scientific experiments and training in space as they approach the Lunar New Year, showcasing the ongoing advancements in space research and technology [1][17]. Group 1: In-Orbit Training and Experiments - The crew is conducting in-orbit training alongside microgravity intuitive physics behavior experiments, utilizing a metacognitive training system for image recognition and operational testing under different initial conditions [2] - The astronauts are using laptops to carry out microgravity intuitive physics behavior experiments, collecting data to explore the effects of long-term spaceflight on intuitive physical representation and recovery mechanisms [4] - The crew is involved in human-robot collaboration experiments with the robot "Xiaohang," focusing on human-robot spatial relationships and multimodal interaction technologies [6] Group 2: Physical and Biological Research - Astronauts are conducting research on muscle and joint stress during exercise, collecting data on foot pressure, joint kinematics, and muscle parameters to understand the relationship between different exercise states and foot pressure [8] - The crew is wearing bionic adhesive shoes to complete lower limb force stimulation tests, gathering data to explore muscle function maintenance and the relationship between stimulation patterns and data [10] - Ongoing brain electrical testing projects are being conducted, utilizing near-infrared brain function imaging to study the impact of long-term spaceflight on astronauts' brain networks and their adaptive mechanisms to external environmental changes [12] Group 3: Equipment Maintenance and Management - The crew has completed maintenance checks on the regenerative life support system and cabin environment, as well as replaced foot limiters to help stabilize body posture in microgravity [15] - Various tasks related to fluid physics and combustion experiments have been performed, including sample changes and equipment maintenance [14]

Core Viewpoint - The Shenzhou-21 crew has been in orbit for three months, with various experiments and tests progressing as planned in the Chinese space station [1] Group 1: Space Medicine Experiments - The pharmacokinetics project is ongoing, with saliva samples collected by astronauts to assist researchers in future in-orbit medication guidance [1] - The crew has completed tests on human-machine trust, emotional state in orbit, and emergency decision-making capabilities [1] - Lower limb force stimulation tests were conducted using bionic adhesive shoes to gather data for further research on exercise in a weightless environment [1] Group 2: Microgravity Physical Science Experiments - The crew has completed sample cleaning and replacement in the containerless cabinet experiment chamber, along with equipment maintenance and cleaning [1] - During the three-month period in orbit, the astronauts have undergone multiple medical checks and actively exercised to counteract the physiological effects of weightlessness [1]

Core Insights - The Shenzhou 21 crew, consisting of astronauts Zhang Lu, Wu Fei, and Zhang Hongzhang, has been in orbit for three months, conducting various planned experiments and maintenance tasks in the Chinese space station [1] Group 1: In-Orbit Experiments - In the field of aerospace medicine, pharmacokinetics projects are ongoing, with saliva samples collected by astronauts to assist researchers in future in-orbit medication guidance [3] - The astronauts utilized laptops and related experimental software to complete tests on human-machine trust, exploratory utilization research, metacognitive monitoring, in-orbit emotional state testing, and emergency decision-making capability assessments [5] - Lower limb force stimulation tests were conducted as planned, with astronauts wearing bionic adhesive shoes to exercise and stimulate lower limb flexor muscles in a microgravity environment [5] Group 2: Microgravity Physical Science Experiments - The crew conducted planned experiments in microgravity physical science, including sample replacement in fluid physics experiment cabinets and maintenance of axial mechanism electrodes and window cover lenses [7] Group 3: Environmental Monitoring and Management - The crew completed multiple tasks related to environmental monitoring and station management, including wind speed and temperature measurements, personal noise exposure assessments, and cabin environment organization [11] Group 4: Health Maintenance - The astronauts performed various medical checks, including dynamic electrocardiogram and blood pressure monitoring, non-invasive cardiac function assessments, abdominal, vascular, and muscle ultrasounds, bone density measurements, and hearing tests to closely monitor their health status in orbit [14] - In-orbit exercise activities were actively conducted to counteract the physiological effects of microgravity [14]

Group 1 - Three astronauts interacted closely with the robot "Xiaohang" aboard the space station, conducting tests such as touch interaction and autonomous flight to gather data for optimizing future robotic movement planning [2] - In the field of space medicine, the crew utilized a space Raman spectrometer to analyze metabolic components in urine samples, with the collected information aimed at refining the relevant metabolic indicator system and evaluation criteria [4] - The crew collected saliva samples to study the impact of astronauts on the microbial population in the space station environment, with unified testing planned upon return [4] Group 2 - The crew completed sample collection and storage for a research project exploring the relationship between the origin of genetic codes and chirality in a microgravity environment, focusing on the chiral combinations of amino acids and nucleotides [6] - Ongoing research includes in-situ electrochemical optical studies of lithium-ion batteries for space applications, along with the replacement of sampling covers in combustion science experiment cabinets and the assembly and disassembly of fluid physics experiment modules [6] - A full-system pressure emergency drill was conducted as planned, simulating an internal depressurization scenario to enhance astronauts' emergency response capabilities and Earth-space coordination [8]

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]

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 various multi-disciplinary experiments being conducted steadily in the national space laboratory [1] Group 1: Space Experiments - In the field of space 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 "Little South" plant, previously featured in the "Tiangong Classroom," is assisting the research team in studying the regulatory molecular network of plant stem cells during this mission [1] - The crew has completed the disassembly and replacement of experimental samples in the fluid physics experiment cabinet, as well as maintenance tasks in the combustion science experiment cabinet [1] Group 2: Health Monitoring - In terms of health maintenance and assurance, the astronauts have conducted daily physical exercises along with medical checks including bone density measurement, electrocardiogram and blood pressure checks, and visual function assessments to comprehensively monitor their health status in orbit [2]

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]

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 experiments ongoing in the national space laboratory [1] Group 1: Space Medicine Experiments - 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 their ongoing studies [3] Group 2: Plant Growth Research - The 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 and has also changed the gas sampling cap in the combustion science experiment cabinet. Additionally, they performed sample cleaning and replacement in the containerless experiment chamber [7] Group 4: Lithium-Ion Battery Research - A project focusing on "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 optical observations of lithium dendrite growth in microgravity [9] Group 5: Equipment Maintenance and Health Monitoring - The crew conducted regular maintenance on onboard equipment and upgraded some software. They also performed medical checks, including bone density measurements, ECG and blood pressure checks, and vision assessments to monitor their health status in orbit [11]

Core Points - The Shenzhou-21 crew has been working in orbit for a month, conducting various space science experiments and performing routine equipment checks and maintenance [1][3][5] - Multiple in-orbit experiments are progressing steadily within the Chinese space station, including a microgravity intuitive physics behavior experiment [3] - The crew completed the installation of new software in the field of space medicine and conducted maintenance on various experimental equipment [5][8] Group 1 - The Shenzhou-21 crew has successfully conducted a full-system pressure emergency drill, simulating an internal depressurization scenario and enhancing the astronauts' emergency response capabilities [7] - Routine maintenance activities included inspections of low-temperature storage devices and pressure checks of environmental control gas cylinders [8] - The crew is also engaged in station management and medical checks simultaneously [8]

Core Insights - The Chinese space station has successfully hosted the Shenzhou 20 crew for over 180 days, marking a significant milestone in its operational timeline [2][11] - The crew has conducted multiple extravehicular activities and various scientific experiments, showcasing advancements in space medicine and microgravity physics [4][6][7] - The upgraded space vegetable garden has yielded fresh produce, highlighting the success of agricultural experiments in space [9] Group 1: Crew Activities - The Shenzhou 20 crew has completed four extravehicular activities, demonstrating their capabilities and the station's operational success [4] - The crew has engaged in experiments related to trust and collaboration mechanisms, fine motor control, and emergency decision-making, contributing valuable data for future space missions [6] Group 2: Scientific Research - Ongoing experiments in inertial particle dynamics have revealed unique particle movement patterns in microgravity, indicating potential for further research [7] - The successful cultivation of vegetables in the upgraded space garden reflects advancements in space agriculture technology [9] Group 3: Future Prospects - As the Shenzhou 20 crew prepares to return to Earth, the arrival of the Shenzhou 21 crew signifies continued collaboration and research opportunities in the space station [11]