Survival of Micro-Organisms in Space

@article{Hotchin1965SurvivalOM,
  title={Survival of Micro-Organisms in Space},
  author={J. Hotchin and P R Lorenz and Curtis L. Hemenway},
  journal={Nature},
  year={1965},
  volume={206},
  pages={442-445}
}
Survival of coliphageT1, tobacco mosaic virus (TMV) and spores ofPenicillium roqueforti Thom after direct exposure to space on board 6 balloons, 6 sounding rockets and 3 satellites is related to the numbers of solar UV photons incident during exposure. The survival followed exponential curves leading to complete inactivation. Solar ultraviolet radiation of wavelengths 2000 A to 3000 A appears to be the main cause of inactivation of broth suspended phage and, probably, TMV.T1 phage… 
Survival of micro-organisms in space
TLDR
Solar ultraviolet radiation of wavelengths 2000 Å to 3000 Å appears to be the main cause of inactivation of broth suspended phage and, probably, TMV.
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Shielding against solar ultraviolet radiation during flight resulted in survival of micro-organisms exceeding to that of the transport controls, and the survival was considered complete.
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