国际首次！祝贺中国科学家

Group 1 - The core finding of the research indicates that the water content in the lunar mantle on the far side of the moon is less than 2 micrograms per gram, suggesting it is very "dry" [1][3] - This study provides significant support for further research on the origin and evolution of the moon, with the related paper published in the international journal "Nature" [1][3] - The research team utilized basalt fragments from the Chang'e 6 lunar samples to study the water content in the mantle source area, revealing a water content of only 1 to 1.5 micrograms per gram, the lowest reported value, indicating that the far side mantle is drier than the near side [3] Group 2 - The lunar mantle, located between the lunar crust and core, is situated approximately 60 kilometers to 1000 kilometers below the moon's surface, and its water content is crucial for understanding the moon's origin, magmatic activity, and resource environmental effects [3] - The study addresses a long-standing debate in academia regarding whether the lunar mantle is water-rich or water-poor, stemming from the hypothesis that the moon formed from debris after a Mars-sized body collided with the early Earth about 4.5 billion years ago [3] - The Chang'e 6 mission collected the first samples from the far side of the moon, providing a unique opportunity to explore the temporal and spatial evolution of water in the lunar mantle [3]