Core Points - The Shenzhou-20 astronaut crew safely returned to Beijing on November 14, 2023, and will undergo a recovery period with medical evaluations [1] - Accompanying the astronauts were space medicine experiment samples weighing 3.2 kilograms, supporting 19 space medicine research projects [2][4] - The ninth batch of space science experiment samples, weighing 46.67 kilograms, was also successfully delivered for further research [4][6] Group 1: Astronaut Return and Medical Samples - The Shenzhou-20 astronaut crew, including Chen Dong, Chen Zhongrui, and Wang Jie, received a warm welcome upon their return [1] - The medical samples include 199 samples across seven categories, such as blood and urine, aimed at analyzing the effects of microgravity on human health [2][4] - The research will focus on various aspects, including bone metabolism and brain homeostasis, using advanced omics technologies [4] Group 2: Space Science Experiment Samples - The ninth batch of space science samples includes living organisms like mice and zebrafish, as well as various materials for testing [6][8] - Scientists will conduct biological analyses on the returned cell samples to understand the impact of microgravity on biological functions [8] - Material samples will be tested for their growth and composition under microgravity, contributing to future applications in space exploration [10][13] Group 3: Research and Development Goals - The ongoing experiments in the space laboratory are expected to yield original and internationally influential scientific results [12] - Research on combustion samples aims to provide insights for new energy systems and advanced nanocarbon materials [13]

Core Insights - A large number of space science experiment samples, including mice, successfully returned with the Shenzhou 21 spacecraft [1] - The experiment mice lived in the Chinese space station for nearly two weeks, which is about double the planned duration [4] - The research aims to understand the stress responses and adaptive changes of mice in space, providing scientific basis for the effects of space environments on living organisms [4] Group 1: Experiment Samples - The returned samples include nine types of biological experiment samples such as mice, zebrafish, and macrophages [1] - Various material samples were also included, such as tungsten-hafnium alloys, soft magnetic materials, and new thermal control coatings [1] Group 2: Research and Development - The entire process of feeding and caring for mice in space has been successfully established, laying a solid foundation for future large-scale mammal cultivation and research in space [6] - The research on mice is expected to help understand potential impacts on humans in microgravity, including effects on muscles and bones [6]

Core Points - The China University of Geosciences (Wuhan) Yifu Museum is recognized as the first national 4A-level tourist attraction among university museums, specializing in geological sciences with over 40,000 geological specimens and nearly 3,000 paleontological fossils on display [1][3] - The museum serves as both a learning environment for students and a platform for public education on geosciences, attracting youth from across the country during the summer [1][9] Collection Highlights - The museum houses a diverse collection of fossils, including the "Liang's Guanling Ichthyosaur," which is notable for its length and preservation, providing insights into evolutionary history [10][12] - Significant specimens include a 50-kilogram iron meteorite and various samples collected from Mount Everest, showcasing the museum's commitment to geological research and education [5][8] Research Contributions - The museum has played a crucial role in scientific research, with teams led by Professor Xiao Long participating in the Chang'e 5 lunar mission, creating over 100 tons of simulated lunar soil for research purposes [8][9] - The discovery of the Guiyang Biota by Song Haijun's team has provided new evidence for understanding the ecological recovery following the largest mass extinction event approximately 250 million years ago, with findings published in the journal Science [12][14] Educational Impact - The museum employs simulation technology to recreate ancient biological environments, enhancing visitor engagement and understanding of geological sciences [10][19] - It serves as a practical classroom for students, inspiring them to explore geology and paleontology through hands-on experiences and fieldwork [19][21] Visitor Information - The museum is open to the public from July 9 to August 28, 2025, with daily hours from 9:00 AM to 5:00 PM, allowing visitors to purchase tickets on-site without prior reservation [22]