Earth's earliest atmospheres.

  title={Earth's earliest atmospheres.},
  author={Kevin J. Zahnle and Laura Schaefer and Bruce Fegley},
  journal={Cold Spring Harbor perspectives in biology},
  volume={2 10},
Earth is the one known example of an inhabited planet and to current knowledge the likeliest site of the one known origin of life. Here we discuss the origin of Earth's atmosphere and ocean and some of the environmental conditions of the early Earth as they may relate to the origin of life. A key punctuating event in the narrative is the Moon-forming impact, partly because it made Earth for a short time absolutely uninhabitable, and partly because it sets the boundary conditions for Earth's… CONTINUE READING
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