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enforces "allowable limits" -- a kind of controlled biological chaos -- that aims to mitigate, rather than eliminate, microbial life on its vehicles. The margins here are extraordinarily slim: When you're talking about microorganisms,[link widoczny dla zalogowanych], 300,000 across the entire spacecraft is actually a remarkably low number. (A human adult,[link widoczny dla zalogowanych], after all,[link widoczny dla zalogowanych], can play host to as many as 200 trillion microorganisms. Trillion,[link widoczny dla zalogowanych], with a T.)To keep the Mars Science Laboratory mission within its 300,0000-critter range, the technicians who built Curiosity regularly cleaned the rover's surfaces -- and those of the spacecraft that delivered it to Mars -- by wiping them with an alcohol solution. They baked the mechanical components that could tolerate high heats to kill the microbes that remained. And they sealed off Curiosity's core box, which contains its main computer and other key electronics,[link widoczny dla zalogowanych],[link widoczny dla zalogowanych], to prevent any traveling microbes from escaping its confines.Here, pictured in the video below,[link widoczny dla zalogowanych], is the clean room at the Jet Propulsion