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How long can an unprotected human survive for in space?

Have you ever wondered how long a human can live unprotected in space? Well, evidently, NASA has an answer, and it’s been circulating all over the web this week. (Spoiler: exposure for about 30 seconds is probably safe). The NASA page also recounts a depressurization event that gave researchers some understanding of how the vacuum of space affects the human body - and now that story is told in the rather fascinating video above. (I won't spoil that for you.)


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