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]

Group 1 - The core crew of Shenzhou 21 is actively engaged in various tasks in space, including training and scientific experiments as they approach the Lunar New Year [1][16] - The crew is conducting in-orbit training and experiments related to microgravity intuitive physical behavior, utilizing a metacognitive training system for image recognition and operational testing [3][5] - Research on the effects of long-term space flight on intuitive physical representation and recovery mechanisms is being carried out through data collection during microgravity experiments [5][10] Group 2 - The crew is involved in studying the impact of different load conditions on foot pressure and joint kinematics during exercise, using various equipment to gather data on muscle-tendon interactions [7][11] - Human-robot collaboration experiments are being conducted with the robot "Xiaohang," focusing on human-machine spatial relationships and multimodal interaction technologies [8] - Maintenance and management tasks are being performed, including checks on life support systems and cabin environment cleanliness, as well as replacing foot limiters to aid astronauts in stabilizing their posture in microgravity [14]

Core Viewpoint - The Shenzhou-21 crew, consisting of astronauts Zhang Lu, Wu Fei, and Zhang Hongzhang, has been on a space mission for over three months, continuing various experiments and environmental monitoring aboard the Chinese space station [1]. Group 1: Space Science Experiments - In the field of space 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 on the effects of microgravity on visual asymmetry and its cognitive neural mechanisms using a laptop [4]. - Ongoing experiments in the field of microgravity physical sciences are being carried out [4]. Group 2: Environmental Monitoring - The crew is monitoring the thermal environment inside the station and conducting air cleanliness tests using equipment such as dew point meters [5]. Group 3: Health Management - Health management includes the use of an adhesive device to stimulate lower limb flexor muscles during exercise in a weightless environment, fulfilling exercise requirements [6]. - The crew has completed multiple medical checks, including intraocular pressure and fundus examinations, as well as overall visual function measurements and orbital B-scan measurements [6].

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 progress of China's space station in 2025 is significant, with advancements in various scientific fields, providing essential support for core scientific missions [1]. Group 1: Scientific and Application Projects - In 2025, the space application system implemented 31 new scientific and application projects in orbit, with approximately 867.5 kilograms of scientific materials sent up and 83.92 kilograms of space science experiment samples returned, resulting in over 150TB of scientific data [3]. - The scientific teams across various fields produced a series of original, cutting-edge, and innovative advancements, resulting in over 50 authorized patents [3]. Group 2: Life Sciences and Experiments - China successfully conducted its first mouse space science experiment aboard the space station, establishing a comprehensive life support and experimental technology system for small mammals, which is crucial for future studies on the effects of space environments on mammals [5]. - The first international study on the behavior and genetic changes of animals in a combined microgravity and sub-magnetic space environment was conducted, laying the scientific groundwork for life health assurance in deep space exploration [6]. Group 3: Technological Research - Research on lithium-ion battery electrochemical optical in-situ studies was conducted aboard the space station, which is expected to advance the fundamental theory of electrochemistry and provide a basis for optimizing current battery systems and designing the next generation of high-energy, high-safety space batteries [7]. Group 4: Future Plans - The space application system plans to launch two flagship astronomical facilities, including a space station survey telescope for significant discoveries in cosmology and a high-energy cosmic radiation detection facility to enhance understanding of dark matter and cosmic ray origins [9].

Core Viewpoint - The Shenzhou 21 crew has been in orbit for over two months, achieving significant scientific experimental results, including the first domestic rodent space science experiments in China's space station [1] Group 1: Scientific Experiments - The crew conducted experiments with four mice to study the effects of microgravity and confined space on their behavior [1] - In addition to rodent studies, the crew utilized Arabidopsis to assist in research on regulating plant stem cell molecular networks [1] - The crew performed sample collection using a scientific glovebox and replaced gas sampling caps in the combustion science experiment cabinet [1] Group 2: Maintenance and Upgrades - The Shenzhou 21 crew conducted regular maintenance on onboard equipment and upgraded certain software [1] - The crew also carried out cleaning and replacement of samples in the non-container experiment chamber and maintained the axial mechanism electrodes [1]

Core Points - The Shenzhou-21 crew, consisting of astronauts Zhang Lu, Wu Fei, and Zhang Hongzhang, has been working in orbit for nearly a month, conducting various space science experiments and performing a full-system pressure emergency drill [1][6] - Multiple in-orbit experiments are progressing steadily within the national space laboratory, including a microgravity intuitive physics behavior experiment and the use of a Raman spectrometer to analyze urine samples [2] - The crew has completed the installation of new software in the field of space medicine and conducted maintenance on experimental equipment [4] Group 1 - The Shenzhou-21 crew has successfully conducted a full-system pressure emergency drill, simulating an internal depressurization scenario to enhance emergency response capabilities [6] - Equipment maintenance activities included inspections of low-temperature storage devices and environmental management tasks to maintain a clean living space [8] - Medical checks, including non-invasive heart function assessments, were performed to monitor the astronauts' health status during their time in orbit [8] Group 2 - The microgravity intuitive physics behavior experiment aims to gather data on the effects of long-term spaceflight on intuitive physical representation and recovery mechanisms [2] - The data collected from urine sample analysis will contribute to refining the metabolic indicator system and evaluation criteria [2] - The crew has also performed maintenance tasks such as cleaning and replacing samples in experimental chambers [4]

Group 1 - The core point of the news is the successful return of the Shenzhou 20 mission, which included a variety of scientific samples for research, highlighting the advancements in space science and technology [2][3] - The Shenzhou 20 mission returned with a total of 26 experimental projects, weighing 46.67 kilograms, which included life, materials, and combustion experiments [2] - Four experimental mice, which were initially scheduled for a short trip of 5-7 days, extended their stay to nearly two weeks due to a delay in the spacecraft's return, increasing the scientific value of their journey [2] Group 2 - The ninth batch of space science experimental samples from the Chinese space station was successfully delivered to scientists on November 15 for further research [3] - In addition to the initial research conducted on the experimental mice post-landing, other life science samples, including zebrafish, goldfish algae, planarians, and brain chips, were also delivered to research teams in Beijing [5] - Future research will focus on transcriptome sequencing and proteomics of life cell samples, as well as morphological and chemical composition analysis of material samples [5]

Core Insights - The successful return of the ninth batch of scientific experiment samples from the Chinese space station via the Shenzhou 21 spacecraft marks a significant achievement in space research [2] Group 1: Scientific Experiment Samples - The returned scientific experiment samples include 26 projects, comprising 9 types of life experiment samples, 32 types of material experiment samples, and 3 types of combustion experiment samples, with a total weight of approximately 46.67 kilograms [2] - Among the life experiment samples, the mouse samples will be observed for behavioral changes and physiological biochemical indicators to understand their stress responses and adaptability to the space environment [2] Group 2: Research and Development - Other life science experiment samples, such as zebrafish, goldfish algae, streptomyces, planarians, and brain organoids, along with some material and combustion experiment samples, were transported to the Chinese Academy of Sciences Space Application Engineering and Technology Center in Beijing [2] - The Space Application Center of the Chinese Academy of Sciences will inspect and confirm the status of the returned samples before handing them over to scientists for further research [2]

Core Points - The ninth batch of space science experiment samples from China's space station was successfully delivered to scientists for further research on November 15, involving 26 experimental projects with a total weight of 46.67 kilograms [1] - The samples include life science experiments with mice, materials experiments, and combustion experiments, highlighting the establishment of an integrated animal cultivation system for future research [1] - The research aims to analyze the behavioral and physiological characteristics of mice in response to space environments, providing scientific evidence for the impact of space conditions on living organisms [1] Summary by Categories - **Life Science Experiments** - The batch includes various life science samples such as mice, zebrafish, and brain organoids, which are being studied for their adaptation to gravity and stress responses [1] - The research is focused on understanding the effects of space environments on living organisms, which is crucial for future space missions [1] - **Materials and Combustion Experiments** - The samples also encompass materials and combustion experiments, emphasizing the application of new materials and the development of renewable energy [2] - The research aims to enhance human health and safety through innovative applications derived from these experiments [2]