“太空小鼠”出征记

Core Insights - The successful launch of the Shenzhou 21 manned spacecraft on October 31 marks the first time that mice have been sent to the Chinese space station for in-orbit life science experiments, addressing key scientific challenges related to long-term survival and reproduction of mammals in space [2][5][7]. Group 1: Mission Objectives and Scientific Importance - The primary goal of the mission is to ensure the mice survive the journey to and from the space station, while exploring their physiological and adaptive responses to the space environment [7][11]. - The research aims to provide scientific evidence on how space conditions affect living organisms, ultimately serving human space exploration needs [7][11]. Group 2: Selection and Training of Mice - A rigorous selection process was implemented, where over 300 mice were screened, and only 4 of the best candidates were chosen to accompany astronauts to the space station [11][14]. - The selected mice belong to the C57BL/6 strain, known for its genetic uniformity, which is beneficial for scientific data collection [11][14]. Group 3: Technological Innovations in Space Research - The space station employs a specialized small mammal breeding device that supports automatic feeding and monitoring, ensuring optimal living conditions for the mice [16]. - The device includes features for environmental control and waste management, which are crucial for maintaining a clean and safe habitat for the mice in microgravity [16].