嫦娥六号着陆器降落相机拍摄的影像。新华社发（国家航天局供图） 中国科学院地质与地球物理研究所和中国科学院空天信息创新研究院等单位的科学家，基于嫦娥六 号月球背面样品，结合月球遥感图像，修正了沿用数十年的月球撞击坑年代学模型，首次证实月球正、 背两面的陨石撞击通量基本一致，其早期撞击通量呈平滑衰减，不支持"晚期重轰击"假说。 记者2月6日从中国科学院获悉，近日，中国科学家用一份来自月球背面的样品优化了沿用数十年的 月球撞击历史模型。 ...

中国科学院地质与地球物理研究所和中国科学院空天信息创新研究院等单位的科学家，基于嫦娥六号月 球背面样品，结合月球遥感图像，修正了沿用数十年的月球撞击坑年代学模型，首次证实月球正、背两 面的陨石撞击通量基本一致，其早期撞击通量呈平滑衰减，不支持"晚期重轰击"假说。（记者胡喆） 嫦娥六号着陆器降落相机拍摄的影像。新华社发（国家航天局供图） 来源：新华社 记者2月6日从中国科学院获悉，近日，中国科学家用一份来自月球背面的样品优化了沿用数十年的月球 撞击历史模型。 ...

Core Viewpoint - Chinese scientists have optimized a decades-old lunar impact history model using samples from the far side of the Moon, confirming that the impact flux on both the near and far sides is consistent and that early impact flux shows a smooth decline, contradicting the "late heavy bombardment" hypothesis [1][6]. Group 1: Research Findings - The study published in "Science Advances" indicates that the lunar impact flux is uniform across both sides of the Moon, challenging previous assumptions about differential impact rates [1][6]. - The analysis of samples from the Chang'e 6 mission revealed two significant breakthroughs: a young basalt dated at approximately 2.807 billion years and an ancient rock at 4.25 billion years, providing a more comprehensive timeline for lunar evolution [3][6]. - The new model developed from the Chang'e 6 data refutes two major hypotheses regarding early lunar impacts, suggesting that the impact activity was a smooth decline rather than a chaotic period of heavy bombardment [6]. Group 2: Methodology and Implications - The research utilized lunar samples and remote sensing images to establish a reliable dating model, linking sample ages to impact crater densities [3][6]. - Prior to the Chang'e 6 mission, all lunar dating samples had significant limitations, primarily being sourced from the near side and lacking samples older than 4 billion years, which restricted understanding of the Moon's earliest history [4][6]. - The findings provide a more accurate "time scale" for lunar scientific research, establishing a global impact crater chronology model that enhances the understanding of the Moon's geological history [6].