“太空小鼠”返回地面后成功孕育幼仔

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 [1][2]. 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, leading to a "food shortage" scenario for the mice [1][2]. Group 2: Emergency Response and Solutions - The research team quickly activated an emergency response mechanism to address the food shortage, utilizing the astronauts' food supply to find suitable alternatives for the mice [2]. - Soy milk was selected as the emergency food after testing various options, and successful resupply occurred on November 12 and 13 [2]. Group 3: Ongoing Research and Future Studies - Continuous systematic research will be conducted on the offspring, focusing on their growth and development, physiological and pathological characteristics, and reproductive capabilities [2]. - Scientists aim to explore the potential genetic and developmental impacts of space environments across multiple generations of mice [2].