Core Viewpoint - The Shenzhou 21 crew's space mission has been ongoing for over three months, with various scientific experiments and maintenance tasks being conducted systematically within the space station [1]. Group 1: Space Science Experiments - In the field of aerospace medicine, the crew has completed blood sample collection and processing, which will be used to study the physiological changes and adaptation mechanisms of astronauts' skeletal, neural, and cerebrovascular systems during long-duration flights [2]. - The crew is conducting experiments related to the impact of microgravity on visual asymmetry and its cognitive neural mechanisms using a laptop [4]. Group 2: Equipment Maintenance and Environmental Monitoring - The crew has performed various maintenance tasks, including cleaning experimental samples, maintaining electrode mechanisms, and replacing experimental samples in fluid dynamics modules [4]. - Environmental monitoring has been conducted using devices like dew point meters to assess the thermal environment inside the station, along with air cleanliness testing [6]. Group 3: Health Management - Astronauts are utilizing devices with adhesive properties to stimulate lower limb flexor muscles during exercise in a weightless environment, fulfilling their exercise requirements [8]. - Multiple medical examinations have been completed, including eye pressure checks, overall vision function measurements, and orbital B-scan measurements [8].

Core Viewpoint - The "space business trip" of the Shenzhou 21 crew has exceeded three months, with various tasks such as scientific experiments, platform maintenance, and health management progressing smoothly [1] Group 1: Scientific Research - In the field of aerospace medicine, the crew has completed blood sample collection and processing, focusing on studies related to bone metabolism and integrated omics [1] - The collected samples will be used to investigate the physiological changes and adaptation mechanisms of astronauts' skeletal, neural, and cerebrovascular systems during long-duration flights [1]

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 Viewpoint - The Shenzhou 21 crew has been in orbit for three months, conducting various scientific and environmental monitoring tasks aboard the Chinese space station, contributing to research and maintaining a livable environment in space [1] Group 1: Space Station Operations - The crew is engaged in pharmacokinetics research, collecting saliva samples that will assist researchers in future studies on in-orbit medication [1] - Environmental monitoring tasks include measuring wind speed and temperature, assessing personal noise exposure, and organizing the internal environment of the space station [1] Group 2: Health Monitoring - The astronauts performed multiple medical examinations, including dynamic electrocardiogram blood pressure checks, non-invasive cardiac function tests, abdominal, vascular, and muscle ultrasounds, bone density measurements, and hearing tests [1] - Data collected from these health checks will help closely monitor the astronauts' health status while in orbit [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 - 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]

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]

Group 1 - The Shenzhou-21 crew conducted various in-orbit training activities, including remote operation rendezvous and docking, medical rescue, and emergency evacuation training, advancing multi-field scientific experiments [1] - During the remote operation rendezvous and docking training, astronauts practiced operational skills using translation and attitude control handles [3] - In the medical rescue training, the crew familiarized themselves with equipment locations, reviewed usage methods, and consolidated operational processes and skills, completing emergency evacuation training under simulated fire conditions in the space station [3] Group 2 - In the field of space medicine experiments, astronauts wore VR glasses and utilized EEG equipment to complete multiple experiments on eye-brain coordination, which may help explore the characteristics and trends of brain control signals under microgravity conditions [3] - In the field of space materials science, progress was made in the in-situ electrochemical optical research of lithium-ion batteries, with results expected to provide important theoretical support for the development and high-reliability application of lithium-ion batteries in future space missions [3]

Core Viewpoint - The Shenzhou-21 astronauts have been working in orbit for over 70 days, continuing their busy schedule with various training and scientific experiments during the New Year holiday [1]. Group 1: In-Orbit Training - The astronauts conducted remote operation rendezvous docking training, utilizing translation and attitude control handles for speed and attitude control skills [4]. - Medical rescue training was completed, familiarizing the crew with rescue operations in microgravity, equipment locations, and operational procedures [4]. - Emergency evacuation training was performed under simulated fire conditions in the space station [4]. Group 2: Space Science Experiments - In the field of space medicine, the crew conducted experiments using EEG devices and VR glasses to explore brain control signal characteristics in microgravity [6]. - Research on intuitive physics in microgravity and space cooperation coding and regulation was also undertaken [6]. Group 3: Material Science Research - Progress was made in the electrochemical optical in-situ research of lithium-ion batteries, which is expected to provide important theoretical support for future space missions [8]. Group 4: Equipment Maintenance and Management - The crew completed various tasks including the replacement of burners in combustion science experiments, disassembly of fluid physics experiment modules, and maintenance of experimental equipment [10]. - Continuous inspection and maintenance of the space station platform and life support systems were carried out [12].

Group 1 - The Shenzhou 21 astronauts have been working in orbit for over 70 days, maintaining a busy schedule even during the New Year holiday [1] - Various in-orbit training activities are being conducted as planned, including remote operation docking training and medical rescue training [2] - The crew has completed emergency evacuation training under simulated fire conditions in the space station [2] Group 2 - In the field of space medicine, the crew is conducting experiments using EEG devices and VR glasses to explore brain control signal characteristics under microgravity [3] - Progress is being made in the field of space materials science, particularly in the electrochemical optical in-situ research of lithium-ion batteries, which may support future space missions [3] - The crew has also completed maintenance tasks such as replacing combustion devices and cleaning experimental modules [3] Group 3 - Continuous inspection and maintenance of the space station platform and life support systems are being carried out [4]