You Don’t Even Want To Know About Bacteria On The Space Station

Think the ISS is squeaky clean...think again! Bacteria like Staphylococcaceae and Enterobacteriaceae absolutely thrive in space stations!
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New Research Collaboration Explores Microbiome of the Space Station
“More than 200 people have crossed the airlock threshold to the International Space Station to conduct research that benefits people on Earth and the agency’s Journey to Mars. The microbes they brought with them—and left behind—are the focus of a new collaborative research opportunity from NASA and the non-profit Alfred P. Sloan Foundation.”
How does ultraviolet light kill cells?
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“Ultraviolet (UV) light kills cells by damaging their DNA. The light initiates a reaction between two molecules of thymine, one of the bases that make up DNA. The resulting thymine dimer is very stable, but repair of this kind of DNA damage--usually by excising or removing the two bases and filling in the gaps with new nucleotides--is fairly efficient.”
Four-year bacterial monitoring in the International Space Station—Japanese Experiment Module “Kibo” with culture-independent approach
“We performed microbial monitoring in the Japanese Experiment Module “Kibo”, a part of the International Space Station, for 4 years after its completion, and analyzed samples with modern molecular microbiological techniques. Sampling was performed in September 2009, February 2011, and October 2012.”
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Written by: Trace Dominguez