Survival of the weakest

被引:20
作者
Asphaug, E [1 ]
机构
[1] Univ Calif Santa Cruz, Dept Earth Sci, Santa Cruz, CA 95064 USA
关键词
D O I
10.1038/45935
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Many asteroids have a porous structure, which helps them absorb energy from collisions without being smashed to bits. This shows how planets might have formed, but could be bad news should an asteroid ever threaten Earth.
引用
收藏
页码:127 / 128
页数:2
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