Files in this Data Supplement:

• Supplemental file 1 - Influence of desiccation on the survival of spores and non-spore-forming cells under various conditions (Table S1); UV resistance characteristics of various non-spore-forming bacteria isolated from several spacecraft assembly facilities (Table S2).
  Zipped Excel document, 6K.
• Supplemental file 2 - Survival indices resulting from the exposure of phosphate-buffered saline-hydrated spores or cells to several cumulative dosages of UVC254 irradiation (Fig. S1); survival of Bacillus pumilus SAFR-032 spores under vacuum (Fig. S2).
  Zipped Powerpoint document, 55K.