【新华社】改写演化认知史！中国不断破译“月球天书”

Core Insights - The Chang'e 6 mission successfully returned with 1935 grams of lunar soil samples, marking the first time humanity has collected samples from the far side of the Moon [1] Group 1: Scientific Discoveries - The Chinese Academy of Sciences identified ancient rock formations in the samples, dating back 4.25 billion years, which serve as a valuable reference point for understanding the Moon's early history [2] - A research team from Jilin University discovered naturally occurring single-walled carbon nanotubes and graphite carbon in the samples, indicating that these materials can form in the Moon's extreme environment [3] - The Shandong University team found micro-sized hematite and magnetite crystals, revealing a new oxidation mechanism on the Moon linked to large impact events [4] Group 2: Geological Insights - Researchers discovered a new type of impact lava from the South Pole-Aitken basin, confirming its formation 4.25 billion years ago, and identified volcanic activity on the far side of the Moon occurring around 4 billion and 2.8 billion years ago [6] - The study revealed that the Moon's magnetic field strength experienced a rebound 2.8 billion years ago, challenging previous assumptions of a monotonous decline [6] - The analysis of basalt samples indicated a significant depletion of incompatible elements, suggesting that giant impact events led to intense volcanic activity and a substantial extraction of magma from the shallow lunar mantle [6] Group 3: Future Research Directions - China aims to promote international sharing of lunar samples, with ongoing research expected to unlock further cosmic mysteries [6]