In science fiction often see such a terrible scene: the spacecraft hull rupture, a crew member in case of no equipment trapped in the cabin space, but he should open the door to drive away the uninvited guests inside the capsule. Lack of space suits to protect people directly exposed to the vacuum and near-zero pressure environment, can not long survive.
But what actually happens? Your eyes will burst out of it? Your blood will boil rapidly evaporate? After the last century, animal experiments of the 1960s and the occurrence in space and pressure tank accident summary, we found that people exposed directly to space the results did not we imagine so dramatic.
Exposure in space, the first thing you will notice is the lack of oxygen, but you and will not lose consciousness immediately. Your body will continue to use your oxygen in the blood, which would be able to maintain 15 seconds. If the process you do not hold your breath, you can probably survive for 2 minutes, and will not cause permanent damage.
But if you held her breath, then you cup. Since the decline in atmospheric pressure will lead you to the rapid expansion of gas inside the lungs, and the lungs bursting, gas will enter your circulatory system. So if you find yourself suddenly exposed to the vacuum environment, the first thing you have to do to your lungs gas all exhaled.
There is one thing you are relatively powerless, exposed in space for about 10 seconds, you will find your skin and tissues begin to sweat. This is a zero-pressure environment, your body starts to evaporate liquid caused. However, because human skin strength is strong enough, you will not inflate like a balloon burst. Also if you were brought back to normal pressure environment, your skin and tissue can be restored to its original state.
Unless you are in shock, or exposure in space and does not affect your blood circulation, because your circulatory system to maintain adequate blood pressure to ensure the flow of blood. Astronaut Jim LeBlanc in 1965 the first air chamber experiments, since the suit there is leakage, led to his exposure to near-vacuum environment. In this accident Jim approximately 14 seconds to keep the consciousness, according to his description, the tongue exposed to the vacuum of water will boil, and he is finally feeling on the tongue in a coma before bubbling. The researchers participating in the experiment in Jim exposed to the vacuum for about 15 seconds after the discovery of anomalies, and timely re-injecting air into the cabin air, Jim and thus rescued.
Due to lack of space suits to protect, you will be directly exposed to cosmic rays, which can cause you serious sunburn, in addition, you may have to decompression sickness. However, despite the very low temperature of outer space, but you will not suffocate before being frozen, because the heat will not be lost so quickly in the absence of convection and conduction situation.
If you end up dead in space, because of the lack of oxygen, your body will not be as common as rotting corpses on Earth. If the body is close to a heat source, it will eventually become otherwise you will be frozen. If you are dead in the suit, it will be rotting corpses, until the oxygen is depleted within the suit. Regardless of the above kind to die due to lack of air, the body can not be degraded, your body will have to keep a very long period of time, and in the vast floating space for millions of years.
(Compiled: via CNET)
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