【新华社】我国科学家首次精确测定月球阿波罗盆地形成于41.6亿年前

Core Findings - Chinese scientists have accurately determined that the Apollo basin on the Moon formed 4.16 billion years ago, providing crucial evidence for the timing of the Late Heavy Bombardment period [1][2] - The research was published in the international journal Nature Astronomy on August 20, Beijing time [1] Research Details - The Apollo basin, with a diameter of approximately 540 kilometers, is the largest secondary impact structure within the South Pole-Aitken (SPA) basin, closely related to the Late Heavy Bombardment [1] - The research team, led by Academician Xu Yigang from the Guangzhou Institute of Geochemistry, discovered three special rock fragments, ranging from 150 to 350 micrometers, in just 3.5 grams of lunar soil [1] - These rock fragments are ideal "rock clocks" that record the impact events associated with the formation of the Apollo basin [1][2]