Radiation: microbial evolution, ecology, and relevance to mars missions.

@article{Rothschild1999RadiationME,
  title={Radiation: microbial evolution, ecology, and relevance to mars missions.},
  author={Lynn Justine Rothschild and Charles S. Cockell},
  journal={Mutation research},
  year={1999},
  volume={430 2},
  pages={281-91}
}
Ultraviolet (UV) radiation has been an important environmental parameter during the evolution of life on Earth, both in its role as a mutagen and as a selective agent. This was probably especially true during the time from 3.8 to 2.5 billion years ago, when atmospheric ozone levels were less than 1% of present levels. Early Mars may not have had an "ozone… CONTINUE READING