Chang'e-6 samples suggest 4.25-billion-year-old impact formed moon's South Pole–Aitken basin

Scientists have long sought to determine the age of the moon's South Pole–Aitken (SPA) basin, the largest and oldest known impact crater on the lunar surface. Recently, a research team led by Prof. Chen Yi from the Institute of Geology and Geophysics at the Chinese Academy of Sciences has dated the formation of the basin to 4.25 billion years ago by analyzing the first-ever rock samples returned from the SPA basin by China's Chang'e-6 mission.