In a previous study, high UV resistance was found in spores of the SAFR-032 strain of Bacillus pumilus, as reported in 'Ultraviolet- Resistant Bacterial Spores,' NASA Tech Briefs, Vol. UV-Resistant Non-Spore-Forming Bacteria From Spacecraft-Assembly Facilities Four species of non-spore-forming bacteria collected from clean-room surfaces in spacecraft-assembly facilities could survive doses of ultraviolet (UV) radiation that would suffice to kill most known cultivable bacterial species.
