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Chang’e 6 Reveals Surprising Temperature Differences on Moon’s Far Side

10/8/2025

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Summary

Story summary

Chang’e 6 returned the Moon’s far-side samples, revealing major thermal differences.
Nature Geoscience says the far side mantle is ~100 °C cooler than the near side.
Researchers analyzed 300 grams of lunar soil dated to ~2.8 billion years using advanced techniques.
Beijing Research Institute and Peking University researchers say findings challenge lunar-formation models; future work will test localization.

History

Historical Context

China's Chang'e 5 mission, launched on November 23, 2020, successfully returned 1,731 grams of lunar samples on December 16, marking the first lunar sample return since the Soviet Luna 24 in 1976. This mission, part of China's Lunar Exploration Program, has provided crucial insights into lunar geology and challenged existing theories about the Moon's formation, prompting further international research collaborations.

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Story summary

Chang’e 6 returned the Moon’s far-side samples, revealing major thermal differences.
Nature Geoscience says the far side mantle is ~100 °C cooler than the near side.
Researchers analyzed 300 grams of lunar soil dated to ~2.8 billion years using advanced techniques.
Beijing Research Institute and Peking University researchers say findings challenge lunar-formation models; future work will test localization.

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