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flag Chinese lunar samples revise impact history, showing steady decline in early impacts and supporting a uniform dating model.

flag Chinese scientists have revised the lunar impact chronology using samples from the Chang’e-6 mission, which returned 1,935 grams of material from the moon’s far side in June 2024. flag The samples, including 4.25-billion-year-old norite and 2.807-billion-year-old basalt, helped establish a uniform impact flux across both lunar hemispheres. flag By combining crater density data from high-resolution images with historical samples, researchers found a steady decline in early impacts, challenging the Late Heavy Bombardment theory. flag The findings support a globally consistent lunar dating model, improving age estimates for the moon and other planetary surfaces.

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