刷新中国航天新速度！走近“零窗口”发射背后的人

Core Points - The successful launch of the Tianwen-2 probe marks China's first interplanetary sample return mission, aimed at asteroid 2016HO3 [1][3] - The mission will also conduct scientific exploration of main belt comet 311P after the sample collection [3][7] Mission Objectives - The primary goal of Tianwen-2 is to explore, sample, and return materials from asteroid 2016HO3, which may contain primordial information about the early solar system [5][9] - The mission involves 13 complex flight stages, with the return capsule expected to land on Earth by the end of 2027 [7] Technical Aspects - The launch required a "zero window" due to the changing relative position of the target asteroid, necessitating precise timing to save fuel [10][12] - The launch window for Tianwen-2 was only 4 minutes, significantly narrower than typical one-hour windows, highlighting the high reliability requirements for the rocket [12][14] Operational Efficiency - The West Launch Center has achieved a remarkable record of 9 successful launches this year, demonstrating improved operational efficiency [24] - Innovations in propellant loading processes have reduced loading time by 30%, showcasing advancements in China's space launch capabilities [26]