The theory is not yet scientifically established.
个理论尚

学地证实。
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Sure enough, different parts of the present moon's crust, recovered by various missions to the lunar surface, differ in age by up to 200m years, a fact that has long puzzled selenologists but which the impact theory neatly explains.
也意味着
个月球的岩石要年久的多。果真如此,
在月球外壳的不同部分,各次去月球表面的探测任务
,
些岩石年代的不同达到2亿年之久。一个长期困扰月球学家的客观事实被
撞理论巧妙地解释了。
普 
大事件!
The Economics Book (Big Ideas Simply Explained)
The Astronomy Book (Big Ideas Simply Explained)