Biological activity in the early solar system in its outer regions

被引:1
|
作者
Hoyle, F [1 ]
Wickramasinghe, NC [1 ]
机构
[1] Univ Coll Cardiff, Dept Appl Math & Astron, Cardiff, S Glam, Wales
关键词
Uranium; Solar System; Plutonium; Heliocentric Distance; Surface Shell;
D O I
10.1023/A:1002480215554
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Chemoautotrophic microorganisms were able to replicate and evolve in the interiors of some 10(11) cometary bodies that occupied the outer regions of the solar system some 4 billion years ago. The requirement of a liquid condition within comets was maintained for an initial epoch through the energy released in radioactive decays. When such energy sources eventually became exhausted inward freezing led to the production of multi-cracked, fragile cometary structures.
引用
收藏
页码:33 / 41
页数:9
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