What happens if you don't wear an astronaut suit and go into space?

Is the spacesuit just radiation protection? The price of an astronaut suit is over 30 million, which can be considered the most expensive suit in the world.

The key is that this suit has a fixed number of times and cannot be saved, otherwise it will endanger the lives of astronauts.

What would happen if the astronauts did not wear the suit in the sun?

The astronauts are behind any experience that mankind gets in space, and regarding the importance of the suit, that is a lesson that the astronauts have learned with their lives.

Earth's environment is the most comfortable in the entire solar system, and humans can even go without clothes on Earth.

However, leaving the Earth's environment, humans can't resist their physical bodies.

There are three major dangers in the space environment that humans, and indeed life on Earth, cannot overcome: the enormous temperature difference, radiation, and the vacuum environment.

What would a man face if he went into space without any space suit?

First is the huge temperature difference, in space, without the protection of the Earth's atmosphere, people will be directly exposed to the sun.

At this time, the human temperature will rise to more than 200 degrees Celsius, equivalent to frying directly on the frying pan, the body's fat will melt, and the body tissue will be directly cooked.

When the back to the sun, the temperature plummeted to the temperature of minus 270 degrees Celsius in space, which is the closest to the existence of absolute zero.

Just the sizzling body, was placed in a large "freezer" inside, the body was frozen stiff.

In this way, people will be in the Earth's gravity, around the Earth's movement, in their orbit to accept the alternating hot and cold, In this situation, people have long been dead.

But more desperate is that people are not dying because of the temperature difference, in the human body in contact with the space environment of the second, people may explode, by their own "gas".

Space is no air, but the human stomach has, as a human being on Earth, there is air in the body.

When humans from the plains to the plateau will occur plateau reactions, one of the symptoms of hypertension is head distension, and stomach distension, feel like they are going to be burnt to death, which is the air in the human body in action.

The air pressure on the plateau is lower than that on the plain, and our body has pressure to maintain balance, and the strength of the pressure is related to the environment in which the person lives.

Generally speaking, at altitudes below 1000 meters, the difference in atmospheric pressure is not large, so we have little effect on the activities on the plain.

However, once on the plateau, the difference in air pressure is too great, and the air in our body cannot be changed, it needs a process.

This process varies from person to person, some people can quickly balance the pressure inside and outside their own body on the plateau, and some people need a long time.

If it takes a long time, there will be various adverse reactions, which is called plateau reaction.

Similarly, the air in the body of people on the plateau is lower than that in general areas, when they come from the plateau to the plain, a low original reaction will occur.

If the astronauts do not wear suits, into space is to run from the standard atmospheric pressure to 0 air pressure environment, the body will be because of the internal pressure of the expansion, and eventually, the body's cells are broken.

This process lasts only a short 30 seconds, the human body fluids will boil, just like boiling, and organs explode.

The vacuum is the most deadly existence in the universe, in front of which the radiation is no longer the most deadly.

Most of the radiation in space is solar radiation, which is high-frequency rays produced by the polymerization reaction of the sun's hydrogen atoms.

Radiation can mutate human cells and cause cancer, but the mutation produced by radiation is no longer terrible when compared to the vacuum that instantly takes a human life.

The experience of life

The first person to see the cruelty of the space environment was not a human, but a small dog named Lycra.

Lycra was an experimental dog that went into space before humans did, to test what happens to live things once they enter space.

Although Lycra was placed in a capsule-like space capsule, according to the data transmitted back from Lycra can learn that it still died a painful death.

Lycra's body was subjected to the huge acceleration of the rocket, which was huge damage to its thin body.

After entering space, the temperature inside the cabin rose rapidly, and Lycra could not withstand such high temperatures and died not long after entering space.

His body and the Sputnik II that transported him are still in orbit around the Earth, but astronomers believe that the dog may have been dead long ago.

The space capsule was poorly sealed, which is the equivalent of being steamed inside the Lycra capsule, and with the highest temperatures in space, it has been vaporized.

Another space animal passenger chimpanzee Hamm is more fortunate than Lycra, it returned to Earth alive, but after returning to half-life, died young.

It was only after them that humans entered space, and they progressed from simply going into space to going to the moon, however, bad luck still befell the astronauts.

The lesson about space suits

Many people are curious as to why the cosmonauts had to wear spacesuits when it was clear that the return capsule was not a vacuum inside. This requirement was paid for with the lives of Soviet cosmonauts.

In 1971, the Soviet Union's Soyuz 11 successfully docked with the space station, which was the first time a human being entered the station and was therefore of great significance.

After the mission, the three cosmonauts returned to Earth according to the prescribed pan but had to take off their bulky suits because the return capsule was overcrowded.

The original thought was that the return capsule maintained normal air pressure, so it would not be a big problem without the suits, but who would have thought that a fluke would have killed the three astronauts.

During the return process, a small part of the Soyuz 11 was shaken off, and this small part was related to the whole return capsule valve.

As a result, Soyuz 11 leaked and the interior of the return capsule was directly connected to the space environment and became a vacuum, with the air pressure dropping to 0.

Forty seconds after the accident, the astronauts lost their vital signs, the return capsule landed according to the program set up for its realization, and the rescuers found the astronauts inside the capsule, who had long since ceased to breathe.

The state of the three astronauts can only be described with the word miserable, their faces grim, the blood in the body showing a foamy state, it is clear that has boiled over.

Afterward, to pursue the responsibility, it was considered that the capsule was unreasonably designed, and did not consider the space for the astronauts to ride after wearing the spacesuits, resulting in the three astronauts taking the risk to take off the spacesuits, resulting in a tragedy.

Since then, the return capsule has been widened and astronauts must wear their suits throughout the launch and return process.

The spacesuit can isolate the temperature of the universe and maintain the pressure inside and outside the human body, which can protect the astronauts even when they are in the vacuum of the universe.

Occupational diseases of astronauts

However, spacesuits are not a panacea, and as soon as astronauts enter space, there will inevitably be physical changes.

Many of these changes are brought on by weightlessness, the most common of which is osteoporosis.

The longer astronauts stay in space, the more calcium will be lost from the bones, and this loss is irreversible, no matter how many calcium tablets are taken afterward, they can not make up for the lost calcium.

Therefore, each astronaut to measure bone age will be more than 10 years older than the original age, they lose calcium 10 to 15% faster than the average person.

In addition to changes in the bones, there are also changes in the astronauts' eyes, especially in the lens, the convex lens inside our eyes, which is elongated after going into space.

This process is also irreversible, and astronauts come back with diminished vision.

Astronauts are coming from pilots, and if an astronaut returns from a long-term space mission, he basically can never fly a plane again.

In addition, astronauts will have varying degrees of muscle atrophy, because weightlessness changes the way they exert force, and humans because walking upright will be a large number of muscles piled up in the lower half of the body.

In space can not walk like on the ground, and the lower limbs get weakened during exercise, for a short period, only the strength becomes smaller, a long time will appear muscle atrophy.

Before going into space, the astronaut's body is the best among humans; after returning from space, the astronaut carries a whole lot of injuries and illnesses.

Not to mention that in the history of mankind, 22 other astronauts have dedicated their lives to the cause of human space.

A tribute to these great astronauts for their exploration.