贺怀宇表示，这项成果不仅阐明了太阳风如何塑造月球外逸层和挥发分的分布，更提示利用月球样 品重建太阳风历史时，需先校正这些分馏效应，才能更准确追溯太阳演化轨迹。研究为理解无大气天体 与太阳风的相互作用提供了新框架，也为探索行星挥发物起源打开新视角。 （原载于《科技日报》 2025-12-03 01版） 在这项研究中，科研人员从嫦娥五号月壤中精选出36颗高纯度斜长石颗粒进行了深入分析。他们发 现，嫦娥五号月壤样品保存的太阳风信号比阿波罗月壤样品更接近原始状态，但仍与初始太阳风成分有 差异。进一步研究显示，这种差异主要发生在太阳风注入月表的瞬间，由注入过程中的动力学质量分馏 导致，而非后期改造。 基于此，科研人员提出了一个三阶段模型来解释月球表面稀有气体的行为——太阳风及宇宙射线注 入、局部热扩散以及再次被辐照。该模型表明，太阳风注入与气体逃逸是相互关联的过程：一部分轻元 素在撞击时可能因矿物微损伤而瞬间释放，进入月球外逸层；微陨石撞击和昼夜温差则会进一步促使气 体扩散逃逸，造成不同颗粒间气体含量的显著差异。 太阳风如何在月球上"留痕"？嫦娥五号月壤给出关键答案。记者2日从中国科学院地质与地球物理 研究所获悉，来自 ...

Core Insights - The research conducted on lunar soil samples from the Chang'e 5 mission reveals key mechanisms of solar wind interaction with the lunar surface, providing new insights into the distribution of volatile elements on the Moon and the evolution of the Sun [1][2] Group 1: Research Findings - Scientists analyzed 36 high-purity plagioclase particles from Chang'e 5 lunar soil, finding that the solar wind signals preserved in these samples are closer to their original state compared to Apollo lunar samples, although differences still exist [2] - The differences in solar wind composition are primarily attributed to the dynamics of the injection process rather than later modifications to the lunar surface [2] Group 2: Proposed Model - A three-stage model was proposed to explain the behavior of rare gases on the lunar surface, which includes solar wind and cosmic ray injection, local thermal diffusion, and re-irradiation [2] - The model indicates that the processes of solar wind injection and gas escape are interconnected, with some light elements being released instantly due to mineral micro-damage during impacts, and further gas escape facilitated by micrometeorite impacts and temperature variations [2] Group 3: Implications - The findings clarify how solar wind shapes the lunar exosphere and the distribution of volatiles, suggesting that corrections for fractionation effects are necessary when reconstructing solar wind history to accurately trace solar evolution [2] - This research provides a new framework for understanding the interaction between airless celestial bodies and solar wind, opening new perspectives for exploring the origins of planetary volatiles [2]

11月24日，《自然-天文学》在线发表了一项关于嫦娥六号月壤的最新研究成果。来自中国科学院 地质与地球物理研究所的科研人员，从颗粒力学的角度解析了嫦娥六号月壤更黏的科学机制，成功揭开 了嫦娥六号月壤的"黏性"之谜。 "这一现象颇为反常。"祁生文解释，"通常颗粒越细，形状会越接近球形。而嫦娥六号的月壤又细 又糙。"正是这种"又细又糙"的颗粒特性，提升了摩擦力、范德华力与静电力的贡献，产生更高的休止 角，造就了其更高黏性特征。 "我们经过一年多的深入研究，首次从颗粒力学角度，系统阐释了月壤的独特黏聚行为，揭开了嫦 娥六号月壤的'黏性'之谜。"祁生文说，"我们认为，这可能与样品中含有大量容易破碎的长石矿物，以 及月球背面经历了更强的太空风化作用有关。" "这项研究为未来月球探测任务提供了重要科学依据。"祁生文说，比如，月壤的流动性影响着陆器 着陆时的稳定性和可能引发的月尘飞扬情况。更黏的月壤意味着不同的力学响应，这关乎着陆的安全 性。 随着我国深空探测步伐的不断加快，这一研究成果将为月球基地建设、月面资源开发利用等提供关 键理论基础，助力我国在月球科学研究和资源利用领域取得新的突破。 记者 陆成宽 2024年6月2 ...

嫦娥六号月壤为何有些黏？中国科学家最新研究揭晓答案 中新网北京11月24日电 (记者 孙自法)嫦娥六号采自月球背面的月壤样品，相对嫦娥五号正面月壤有些 黏，月壤为什么会出现这样不同的物理特性？这个问题在学界和社会上都颇受关注。 来自中国科学院地质与地球物理研究所的最新消息说，基于嫦娥六号月壤样品，该所祁生文研究员团队 经过一年多深入研究，系统揭示出月球背面月壤表现出较高黏性特征的物理机制，从颗粒力学层面完整 阐释了嫦娥六号月壤为什么有些黏的科学谜题。 祁生文研究员在实验室对嫦娥六号月壤进行实验研究。中国科学院地质与地球物理研究所 供图 这项嫦娥六号月壤研究重要进展的成果论文，11月24日以"在嫦娥六号着陆点发现强黏聚月球土壤"为 题，在国际专业学术期刊《自然-天文》上线发表。 助力月球科研与资源利用 基于这些研究成果，研究团队对嫦娥六号返回样品进行1微米的高空间分辨计算机断层扫描(CT)，通过 对超过29万个月壤颗粒的尺寸与形态进行精确厘定，并同月球正面嫦娥五号和阿波罗月壤对比，发现嫦 娥六号月壤D60值最小，仅为48.4微米，颗粒更细，形态更复杂，整体球度显著偏低。 祁生文指出，通常颗粒越细，形状越接近球形 ...

精细成分分析表明，月壤中含有极少量磁性矿物且不含任何黏土矿物，即排除磁力和胶结作用的影响 后，研究团队确认其休止角增大主要受三种粒间力的协同控制：摩擦力、范德华力和静电力。其中，摩 擦力的作用与颗粒表面粗糙度正相关，范德华力与静电力的作用则随颗粒尺寸减小而显著增强。 研究团队发现可以通过测定D60值来判断颗粒尺寸对休止角的影响。D60是小于某一粒径的颗粒重量占 到总重量60%时的颗粒粒径值。对比不同D60值的非黏土矿物颗粒（石英、辉石、钙铁辉石、拉长石） 的休止角变化，团队发现了一个关键"粒径阈值"：当D60值低于约100微米时，范德华力与静电力对休 止角的作用开始凸显，使得非黏性矿物颗粒表现出明显的黏性特征。 基于这些理论，科研团队对嫦娥六号返回样品进行了1微米的高空间分辨CT扫描，通过对超过29万个月 壤颗粒的尺寸与形态进行精确厘定，并同月球正面嫦娥五号和阿波罗月壤对比，发现嫦娥六号月壤D60 值最小，仅为48.4微米，颗粒更细，形态更复杂，整体球度显著偏低。 新京报讯（记者张璐）11月24日记者获悉，基于嫦娥六号月壤样品，中国科学院地质与地球物理研究所 祁生文研究员团队揭示了月球背面月壤表现出较高黏性特 ...

Core Insights - The 8th China International Import Expo (CIIE) opened in Shanghai on November 5, showcasing China's achievements in deepening reforms and promoting high-level openness during the 14th Five-Year Plan period [2][4][6][8][10][12][14] Group 1 - The China Pavilion at the expo highlighted numerous technological achievements that attracted significant attention [2][4][6] - Exhibits included advanced models such as the TSI double-decker train and light magnetic levitation train, demonstrating China's progress in transportation technology [6] - Notable displays featured lunar soil samples from the Chang'e 5 and Chang'e 6 missions, emphasizing China's advancements in space exploration [8] Group 2 - The event also showcased innovative robotics, including non-invasive brain-machine interface robots and robots performing traditional calligraphy, reflecting the integration of technology in cultural practices [12][14] - The expo serves as a platform for international exhibitors, fostering global trade and cooperation, as evidenced by interactions between exhibitors and attendees [10]

Core Insights - Understanding the distribution and storage mechanisms of water on the lunar surface is fundamental for comprehending the evolution of lunar materials, resource distribution, and future utilization [1] - The study conducted by a joint team from the National Space Science Center and the Institute of Geology and Geophysics of the Chinese Academy of Sciences analyzed the water content and hydrogen isotopes in titanium iron ore particles from the Chang'e 5 lunar soil [1] - The research reveals the dual role of titanium iron ore in the distribution and storage of lunar water, highlighting its ability to convert solar wind hydrogen into water while also facing limitations in long-term water stability due to its crystal structure [1] Research Findings - The study provides a possible mineralogical mechanism to explain the significant diurnal variations of water observed in the titanium-rich regions of the moon [1] - The findings offer important scientific evidence for future in-situ resource development on the moon, focusing on titanium iron ore as a primary target [1] - The research results were published in the international academic journal "Nature Communications" [1]

Group 1 - The Chang'e 5 lunar soil has been shared for research with six countries [1] - The Zuchongzhi 3 quantum computing prototype leads the world in speed [1]