嫦娥六号月背样品修正月球研究“时间标尺”

Core Viewpoint - The research team has successfully updated the lunar impact crater dating model based on samples from the Chang'e 6 mission, confirming that the impact frequency on the Moon's front and back is consistent, and revealing a smooth decay trend in early lunar impact events rather than the previously hypothesized violent fluctuations [1][2]. Group 1: Research Findings - The study utilized high-resolution remote sensing images to systematically analyze the impact crater density in the Chang'e 6 landing area and the entire South Pole-Aitken Basin, integrating historical sample data from the Apollo program, Chang'e 5, and others to construct a new lunar impact crater chronology model [2]. - The results indicate that the impact crater density data from the Moon's far side aligns perfectly within the confidence interval of the model established from front-side samples, suggesting a uniform impact flux across both sides of the Moon [2]. - The new model provides fresh insights into the early impact history of the Moon, showing that the age data from the South Pole-Aitken Basin significantly deviates from the "zigzag model" or "late heavy bombardment" hypothesis, supporting a smooth and rapid decay in early impact frequency [2]. Group 2: Implications for Future Research - This research fundamentally updates the understanding of the Moon's impact history, highlighting the key value of the Chang'e 6 samples and providing a more precise scale for future chronological studies of the Moon and other celestial bodies in the solar system [2].