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What happens if someone takes off his space helmet in space?
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Suffocation (there's no air in space)

Severe heamorraging as the cavities and blood vessels expand and rupture. (Space is a vacumn)

Freezing. (It's very cold in space)

Assuming you could survive all of that, the radiation from the sun would eventually kill you. Quite quickly if there happen's to be a star (like our sun) nearby that's going through a period instability; coronal mass ejections, solar flares etc..


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First answer by Chris Hale. Last edit by Chris Hale. Question popularity: 80 [recommend question]

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