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 Insights - The Chinese space station's application system has successfully implemented 58 scientific and application projects in orbit this year, achieving significant advancements [1] - A recent experiment conducted with the assistance of astronauts involved heating tungsten alloy to over 3100℃, setting a new record for the highest heating temperature in international space materials science experiments [1] Summary by Categories - **Scientific Achievements** - The space station has completed 58 projects in 2023, showcasing its active role in scientific research and application [1] - The tungsten alloy heating experiment surpassed previous records, highlighting advancements in materials science [1] - **Experimental Details** - The experiment involved astronauts and aimed to explore the properties of materials at extreme temperatures, which is crucial for future space applications [1]

Core Insights - The Chinese space station has successfully implemented 58 scientific and application projects in orbit since 2025, achieving significant advancements in space materials science experiments, including setting a new world record for heating tungsten alloy to over 3100 degrees Celsius [1][4]. Group 1: Technological Breakthroughs - The "space furnace" located in the Chinese space station has successfully heated tungsten alloy to over 3000 degrees Celsius, nearing half the temperature of the sun's surface, which expands the range of materials available for future experiments [4][9]. - Two key technological breakthroughs are highlighted: the "suspension technique" and the "three-flame true fire" [9][17]. - The "suspension technique" allows liquid metals to be suspended in a microgravity environment, preventing contamination and interference, thus achieving a "containerless" state [11][13]. - The "three-flame true fire" utilizes a dual-wavelength laser system to heat metals, enabling even high-melting-point materials like tungsten alloy to be melted into liquid spheres [15][17]. Group 2: Future Applications - The advancements in material science could lead to the development of new heat-resistant materials that may serve as protective armor for spacecraft during atmospheric re-entry or as critical components in rocket engines operating under extreme temperatures [21].