当巨大物体袭击月球时,月球发出空心球似的声音之谜

在阿波罗探险过程中,废弃的火箭第三节推进器会轰地一下撞在月球表面。据美国航空航天局的文件记载,每一次这样的响声,听起来仿佛是一个大铃铛的声音。当登月人员降落在颜色特别黑的平原上时,他们发现要在月球表面钻孔十分困难。土壤样品经分析后发现,其中含有大量地球上稀有的金属钛(它被用于超音速喷气机和宇宙飞船上);另一些硬金属,如锆,铱、铍的含量也很丰富。科学家觉得迷惑不解,因为这些金属只有在很高的高温约华氏4500度下,才会和周围的岩石融为一体。




月球  空心  物体  袭击  似的  发出  巨大  声音  

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