Core Findings - The Chang'e 6 lunar sample has revealed new insights into the "ultra-reduced" state of the lunar mantle, enhancing understanding of the moon's internal composition and formation [1][5] - The lunar mantle, which is over 1000 kilometers thick and constitutes more than half of the moon's volume, is a key source of magma activity and volcanic eruptions, influencing lunar evolution [3] Research Insights - The lunar mantle from the Chang'e 6 landing site is found to be drier, poorer, and more reduced compared to the lunar mantle on the moon's front side, indicating a lack of oxidation or a subsequent reduction possibly due to large impact events [5][7] - Differences in basalt distribution, geological features, chemical composition, and crust thickness between the moon's front and back sides are significant, with ongoing research into the oxidation-reduction states of the lunar mantle [5][7] Sample Distribution and Research Applications - A total of 125.42 grams of lunar research samples have been distributed in nine batches, including samples requested by seven institutions from six other countries [8][9] - The application process for lunar samples involves a strict online submission and expert review system, with an average processing time of about five months from application to sample distribution [11][13] - Research focus has shifted from traditional geological analysis to engineering applications, including in-situ resource utilization and lunar soil brick production, with numerous engineering institutions now involved in lunar sample research [13]