“太空小鼠”，当妈妈了！

Core Viewpoint - The successful birth of nine offspring from a mouse that returned from space demonstrates that short-term spaceflight does not negatively impact reproductive capabilities in mice, providing valuable samples for studying the effects of space environments on early mammalian development [3][11]. Group 1: Space Mission Details - Four experimental mice were launched aboard the Shenzhou 21 spacecraft on October 31, 2025, and returned to Earth on November 14, 2025 [1]. - The mission faced challenges, including a food supply issue due to adjustments in the Shenzhou 20 return plan, which led to a "food shortage" for the mice [5][7]. Group 2: Emergency Response - The ground research team activated an emergency response mechanism to address the water supply issue by utilizing a reserved external water supply interface in the space breeding device, allowing astronauts to provide drinking water to the mice [5]. - For food supply, the team selected soy milk as an emergency food after testing various potential substitutes from the astronauts' food list, successfully completing the soy milk supply on November 12 and 13 [7]. Group 3: Monitoring and Future Research - An AI behavior analysis system was developed to track the mice's movement, eating, and sleeping patterns, providing critical data for emergency decision-making [9]. - Ongoing systematic research will focus on the growth and development curves, physiological and pathological changes of the offspring, as well as their reproductive capabilities, with the aim of exploring the potential impacts of space environments on multi-generational genetics and development [11].