月球水从哪里来？嫦娥六号月壤样品获重大发现

Core Insights - Chinese scientists have identified impact residues from CI carbonaceous chondrites in 2 grams of lunar soil samples from the Chang'e 6 mission, suggesting that water detected in lunar samples may originate from such meteorite impacts [1][3] - This research highlights the potential for material from the outer solar system to migrate inward, providing significant insights into the sources of water on the Moon's surface [1] Group 1: Scientific Findings - The analysis of lunar soil samples revealed that the fragments are products of CI carbonaceous chondrite parent bodies impacting the Moon's surface, melting, and then rapidly crystallizing [1] - CI carbonaceous chondrites are primarily found in the outer solar system and are rich in water and organic materials essential for life [1] Group 2: Implications for Future Research - The findings offer new directions for studying the distribution and evolution of water resources on the Moon, indicating that previously detected water with positive oxygen isotope characteristics may be linked to these meteorite impacts [1] - The Moon serves as a "natural archive" for preserving impact traces due to its lack of atmosphere and geological activity, making it an ideal location for studying meteorites [3]