中国月球样本修改撞击历史,显示早期影响稳步下降,支持统一的约会模式。
Chinese lunar samples revise impact history, showing steady decline in early impacts and supporting a uniform dating model.
中国科学家使用来自6号任务的样本修订了月球撞击时间表,该任务在2024年6月从月球的远端返回了1935克物质.
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.
这些样本,包括4.25亿年前的诺尔特和2.807亿年前的巴萨尔特,有助于在整个月球上形成一个统一的撞击通量。
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.
研究人员通过将高分辨率图像中的弹坑密度数据与历史样本结合起来,发现早期影响持续下降,对晚期重轰炸理论提出了挑战。
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.
研究结果支持全球一致的月球约会模式,改进了月球和其他行星表面的年龄估计。
The findings support a globally consistent lunar dating model, improving age estimates for the moon and other planetary surfaces.