Bacterial biofilms are clusters of microorganisms that form on wetted surfaces virtually everywhere. They harbor pathogens that compromise water quality, and they can disrupt the operation of many different engineered systems through the corrosion, fouling and clogging of tanks, pipes and valves. In some settings, they could even be deadly. Space suits that enable crew operations outside of the International Space Station use recirculating water to regulate body temperatures in the orbital extremes of full sun (250 F) and full shade (-250 F).

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