What happens when not wearing protective gear in space?

The human body is not adaptable in space, so thanks to the help of protective gear to explore the universe. So what happens when humans if astronauts take off their space suits and walk out into space?

Will human eyes explode and blood evaporate? No, the truth is less dramatic but more attractive. The answer was summed up in accidents in space and in the laboratory as well as in animal experiments in the 1960s.

Lack of gas

The first thing we feel when we are in space is the feeling of lack of air . We will not lose consciousness immediately, and can maintain alertness for about 15 seconds because the body will use the stored oxygen in the blood, and if we stop breathing we can live survived within two minutes without permanent injuries.

Uncontrollable ability to excrete the body

In the absence of serious oxygen, humans lose the ability to control certain functions on the body . In 1965, researchers did an experiment to put 100 dogs into a vacuum emulated environment. The results show that in addition to the lungs of these dogs being emptied of air, their body waste is also immediately removed.

If we breathe , the pressure difference between the body and the space will cause the air in our lungs to expand and break the lungs and then the gas will creep into the circulatory system. So the first thing we need to do if we fall into that space is to breathe out and then stop breathing to prolong the life to wait for salvation.

The body is swollen

Besides, for about 10 seconds or longer, our skin and the underlying tissues begin to swell because our body's water starts to evaporate under atmospheric pressure almost zero. We will not bulge to the point of exploding because human skin is strong enough to avoid explosion, and if we are brought back to where atmospheric pressure is at a timely standard, the skin and tissue will return. normal.

It also does not affect blood because our circulatory system can keep blood pressure at normal levels, unless we are shocked.

Blood boiling

The lower the pressure, the lower the boiling point of the liquid (the boiling point is the temperature when the threshold is reached, the substance will shift from liquid to gas). That's why the water on the top of the mountain is faster than the lower one.

Remember that aerospace has no pressure, so the boiling point is easily lowered to the temperature of the human body. This means that even saliva can burn your tongue and the fluid in the blood will start to boil.

According to Jim LeBlanc, who had been exposed to nearly vacuum conditions in the test chamber in 1965, he was still aware for about 14 seconds, the last thing he felt was the bubbling foam on his tongue. LeBlanc Jim was revived safely because after 15 seconds the researchers immediately put pressure and air back into the test chamber.

"Sunburn"

Because of exposure to cosmic radiation without any protection, we will suffer from severe sunburn , we will also have bad feelings due to pressure drop.

Freeze

However, we will not freeze immediately even though the temperature is very cold minus 440 degrees Fahrenheit (ie 262 degrees Celsius), due to the lack of convection and thermal conductivity, the body temperature does not drop so quickly. We froze before suffocating.

Cell mutation

You will be affected by radiation from stars such as harmful UV rays, gamma rays, X-rays. These rays will alter the body's cells, but it does not bring the supernatural power like in the movie. Even if you are lucky to survive because someone pulls in the spacecraft, you will die later because of radiation poisoning or cancer.

Mummy in space

If we die in space, our bodies will not decompose in the usual way because there is no oxygen. If we are near the heat source, the body after death will turn into a dry mummy, otherwise the body will freeze.

If the human body after death is wrapped in the astronauts' armor, it will decompose until the oxygen is gone. Depending on the condition, the dead body may survive for a very long time without fear of damaging weather conditions as well as the air as it does on Earth. Human corpses can drift millions of years in space.