Core Insights - The successful return of the eighth batch of space science experiment samples from the Chinese space station on April 30, 2023, marks a significant achievement in space research, involving 25 experimental projects across various fields including space life sciences, materials science, and new technologies, with a total weight of approximately 37.25 kilograms [1][3] Group 1: Space Life Sciences - The returned life science samples include 20 categories such as bone cells, induced pluripotent stem cells, bronchial epithelial cells, early embryos of humans and animals, protein samples, and fruit flies, representing the largest variety of biological samples and experimental projects to date from the Chinese space station [3][5] - Research will focus on mechanisms of bone loss in microgravity, characteristics of 3D growth of stem cells in space, effects of space radiation on cancer, and the impact of space environments on early embryonic development [5][7] Group 2: Space Materials Science - The materials science samples, which will be transported back to Beijing, consist of 22 types across 4 categories, including tungsten-based ultra-high temperature alloys, high-strength steel, nonlinear optical crystals, indium selenide semiconductor crystals, lunar soil reinforcement materials, and gel composite lubricants [5][7] - The research aims to analyze the effects of microgravity on material growth, segregation, solidification defects, and performance, providing technical support for the design of new high-performance alloys and large-size high-performance crystals [7]

微重力物理科学领域多个实验项目持续进行中，乘组完成了流体物理实验柜及高温材料实验柜实验样品更换、抽真空排废气等多项工作。 上周，3名航天员完成了风速及温度测量、空气洁净度测试等多项环境监测工作，并对站内设备进行了例行检查维护。 此外，航天员在轨完成了药代动力学研究相关工作，积累相关数据，为后续指导在轨用药提供参考。 在航天技术试验领域，空间逆布雷顿大冷量制冷技术试验项目载荷舱内组装测试等工作按计划开展。该项目面向深空探测等后续任务需求，开展基于超高速 动压气浮轴承的逆布雷顿大冷量制冷技术的试验验证，有望提高我国空间热控技术水平，并为未来宇航任务应用提供技术支持。 神舟十九号航天员乘组的"太空出差"之旅即将进入倒计时。上周，神十九乘组稳步推进各项空间科学实（试）验，在开展站内环境监测、设备检查维护等工 作同时，积极开展健康维护。 神十九乘组利用脑电设备开展了多项实验的测试工作，地面科研人员将利用获取的数据探究重力对视觉运动信息加工过程的影响、揭示空间微重力环境中人 类对关系的认知规律及其神经基础，并探索脑波音乐干预对长期空间飞行抑制控制功能的调控作用。 "出差"近半年时间，在"太空之家"的居住及工作感受如何？乘 ...