Core Viewpoint - The successful birth of nine baby mice from a female mouse that returned from space marks a significant achievement in China's space research, demonstrating the feasibility of conducting mammalian experiments in space and providing valuable data for future studies [1][2]. Group 1: Space Experiment Overview - Four experimental mice were launched aboard the Shenzhou 21 spacecraft and conducted survival and adaptation experiments in a space environment [1]. - The mission faced challenges, including a temporary food shortage due to adjustments in the Shenzhou 20 return plan, which required rapid emergency responses from the ground research team [1]. Group 2: Emergency Response and Adaptation - The ground team quickly initiated an emergency response mechanism, evaluating various potential food substitutes and ultimately selecting soybean milk for the mice [1]. - The team also addressed the mice's drinking needs by utilizing a water supply interface in the space breeding device, ensuring the mice had access to water during the mission [1]. Group 3: Data Support and Monitoring - An AI behavior analysis system was developed to track the mice's movements, eating, and sleeping patterns, providing critical data to support emergency decision-making [2]. - The successful recovery of the mice after their return to Earth on November 14 and their subsequent transport to Beijing on November 18 highlights the comprehensive technical solution for conducting mammalian space experiments [2]. Group 4: Research Implications - The mother mouse exhibited normal nurturing behavior, and the vitality of the baby mice was reported to be good, indicating that short-term space flight did not negatively impact the reproductive capabilities of the mice [2]. - This mission provides invaluable samples for studying the effects of space environments on early mammalian development, laying a solid foundation for future large-scale mammalian space science experiments [2].

本报北京12月28日电 (记者李君强)记者从中国科学院空间应用工程与技术中心获悉：此前随神舟二十一 号载人飞船上行的4只实验小鼠中，1只雌鼠在返回地面后受孕，于12月10日凌晨6时许成功分娩，顺利 产下9只幼仔，目前有6只幼鼠存活，存活率正常。 《 人民日报 》( 2025年12月29日 11 版) 11月18日凌晨，小鼠按实验计划顺利返回北京。这标志着我国首次实现了包括前期准备、开展在轨实验 到样品下行回收等环节的哺乳动物空间实验的全流程技术方案，为未来更大规模开展哺乳动物空间科学 实验奠定了基础。对于这批由太空返回小鼠孕育的子代，科学家将持续开展系统性研究，重点关注其生 长发育曲线、生理与病理特征的变化。科学家还将进一步观察子代的繁殖能力，尝试获得"子二代"小 鼠，以深入探讨太空环境对哺乳动物多代遗传和发育的潜在影响。 4只实验小鼠于10月31日随神舟二十一号载人飞船发射升空，入驻中国空间站空间小型哺乳动物饲养装 置，开展空间环境下的生存与适应实验，后随神舟二十一号飞船于11月14日返回地面。 ...

新华社北京12月27日电（记者胡喆）记者27日从中国科学院空间应用工程与技术中心获悉，随神舟二十 一号载人飞船上行的4只实验小鼠中，1只雌鼠在返回地面后受孕，于12月10日凌晨6时许成功分娩，顺 利产下9只幼鼠，目前有6只幼鼠存活，存活率正常。 "太空鼠"于10月31日随神舟二十一号载人飞船发射升空，入驻中国空间站空间小型哺乳动物饲养装置， 开展空间环境下的生存与适应实验。 这次太空之旅并非一帆风顺。由于神舟二十号返回计划调整，小鼠的特制饲料无法临时补充，在任务后 期遭遇"断粮"考验。 地面科研团队迅速启动应急响应机制，第一时间开展多方案论证与地面验证：紧急调取航天员食品清 单，筛选出压缩饼干、玉米、榛子、豆浆等多种潜在替代食物，重点测试食物的适口性、小鼠食用后的 健康状态及在轨补充操作的可行性。经多方评估考量，最终选定豆浆作为小鼠应急食物，并成功完成豆 浆补给。借助空间饲养装置预留的外部补水接口，在航天员协助下将空间站内的饮用水通过补水接口注 入小鼠实验单元，快速解决了小鼠的饮水问题。 其间，科研团队还通过提前研发的AI行为研判系统，实时追踪小鼠的运动轨迹、进食、睡眠等状态， 精准预测饲料消耗进度，为应急决 ...