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月球最古老撞击遗迹形成于42.5亿年前 揭秘太阳系早期历史
3月21日,中国科学家通过嫦娥六号采回的月球背面月壤样品研究,确定了月球最古老、最大的撞击遗迹——南极-艾特肯盆地(SPA盆地)形成于42.5亿年前。这一发现为太阳系早期大型撞击历史提供了初始锚点,对理解月球乃至太阳系早期演化具有重大科学意义。研究成 ...
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