Core Insights - The Tianhe core module, launched four years ago, marks the beginning of China's space station era with a designed lifespan of no less than 10 years [1] - The space station construction emphasizes independent innovation, with over 90% of new technologies and products being domestically developed, and 100% of core components being independently controllable [4] Technological Advancements - The Tianhe core module serves as both an independent system and the main control hub for the entire space station, undergoing continuous functional upgrades since its launch [7] - Hardware and software upgrades have been implemented, including an enhanced material management system for more automated and intelligent management of the space station's resources [10] Operational Enhancements - Astronauts have been actively involved in installing external debris protection devices to improve the space station's adaptability to complex space environments [10] - Continuous life assessments and on-orbit upgrades have been conducted to extend the operational lifespan of the space station, which is now capable of extending its lifespan to 15 years [10]