What happens to a human in open space?
Nathalie Etienne
2025-05-16 12:33:00
Nombre de réponses: 1
Humans in space without spacesuits would not last long. An astronaut floating without a suit in space wouldn't survive, but their demise would happen within minutes, not within seconds, and it would be a gnarly exit, with boiling bodily fluids and a nearly frozen nose and mouth. In the absence of pressure, liquid water in our bodies would boil — changing immediately from a liquid to a gas. In essence, all of your body tissues that contain water will start to expand. The formation of gas bubbles in bodily fluids, known as an ebullism, also occurs in deep-water scuba divers who surface too quickly because they go from an underwater environment of high pressure to low pressure at the water's surface. No human can survive this — death is likely in less than two minutes. The vacuum of space would also pull air out of your lungs, causing you to suffocate within minutes. The continuous boiling of water would also produce a cooling effect — the evaporation of water molecules would absorb heat energy from your body and would cause the parts near your nose and mouth to nearly freeze.
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