Core Insights - The Chinese Academy of Sciences has released significant research findings from the Chang'e 6 lunar sample series, published in the journal Nature, revealing insights into the evolution of the Moon's far side and providing key evidence to understand the Moon's "bipolarity" mystery [1][2] Group 1: Lunar Sample Findings - The Chang'e 6 mission returned 1935.3 grams of samples from the Moon's South Pole-Aitken Basin, confirming two distinct periods of basaltic volcanic activity approximately 4.2 billion and 2.8 billion years ago, indicating a broader time span of volcanic activity on the far side compared to the 2 billion years identified on the near side by Chang'e 5 [1] - The research team obtained ancient magnetic field data from the far side, suggesting that the Moon's magnetic field strength may have rebounded around 2.8 billion years ago, challenging the traditional view of a monotonous decline in magnetic field strength [1] - The study revealed that the South Pole-Aitken Basin, a major geological unit with a diameter of about 2500 kilometers, has significantly lower water content in its mantle compared to the near side, indicating a dichotomy in the Moon's internal water distribution [1] Group 2: Impact of Findings - The discovery of a new type of rock, South Pole-Aitken impact lava, is described as a "time capsule" for studying impact effects on terrestrial bodies, highlighting the importance of the South Pole-Aitken Basin in lunar evolution research [2] - The Chang'e 6 mission has filled a research gap regarding the evolution of the Moon's far side, with the South Pole-Aitken Basin being a critical geological unit for understanding the effects of large impacts on lunar evolution [2] - The success of China's lunar exploration program represents a significant integration of science and engineering, with the potential for China to transition from a "follower" to a "leader" in planetary science through the acquisition of more primary data [2]