What is the situation? The astronauts of Shenzhou-17 have all put on "protective masks," is it possible that the space station is poisonous? This has indeed made many people see that in the space video released by the mainland, they clearly see that the astronauts are "wearing protective masks" in the cabin section.
This can be said that there is no such thing as fake, it is completely real video, what is the situation?
It can only be said here that space is more dangerous than imagined, and there are risks in every mission, and the astronauts must have a certain reason for doing this, and judging from the picture, the astronauts are brought into the Chinese Tianzhou-7 cargo spacecraft, so why, I will explain step by step, let's take a look at the problem of Tianzhou-7.
The astronauts are already on a mission
That's right, after the launch of the Tianzhou-7 cargo spacecraft, the Shenzhou-17 astronauts did not stop resting and quickly carried out a new round of tasks, that is, to carry out the transportation of materials for the Tianzhou-7 cargo spacecraft.
This time, Tianzhou-7 still transported a lot of cargo, achieving a new height of cargo transportation on China's space station.
According to the public list of goods, it is mainly divided into three categories, with a number of more than 260 pieces and a total weight of more than 5.6 tons.
The proportion of scientific materials this time from the weight of more than 30%, the proportion has been further improved, which also shows that the experimental project of the continental space station is also steadily advancing, so Tianzhou-7 can be regarded as creating a miracle in all aspects of the mainland.
Of course, as China's improved model of cargo spacecraft, this is still the second, before Tianzhou 11, the mainland cargo spacecraft will be further upgraded, and then it will be connected to the new batch.
Therefore, so many cargo materials, for the mainland Shenzhou 17 astronauts, it still takes a certain amount of time to transfer, after all, the ultimate purpose of the mainland Tianzhou cargo spacecraft is to "re-enter the atmosphere" and then burn it up.
Speaking of re-entry and re-atmospheric burning, many people may ask again, why not recycle such a powerful cargo spacecraft?
Speaking of a direct reason, that is, the mainland's cargo spacecraft did not take into account the recovery at all, the main thing is the cargo strength of the enhancer, which is different from the International Space Station, the cargo transportation of the International Space Station has to be sent several times a year, and the mainland is basically once a year, and it may even be once a year and a half in the future, so the two take different routes.
And in terms of cost, there is no need for China to recycle at this stage with high costs, if the space station is upgraded in the future, from three to six cabins, the demand will be greater at that time, and there may be considerations in this regard, but there is no such plan in the short term, which is not much to say.
Then back to the central question, that is, why Shenzhou 17 astronauts Tang Hongbo, Tang Shengjie, and Jiang Xinlin wore masks when they transferred the cargo materials of Tianzhou 7.
Tianzhou-7 is unsafe? Why do you need to wear a protective mask for cargo transshipment?
Indeed, it is very obvious in the video, is it poisonous in the cargo hold of Tianzhou 7?
This must make many people more confused, according to normal circumstances, Tianzhou-7 was launched from the ground, there should be no such problem, isn't this looking for astronauts?
Therefore, the use of protective masks is not "certain" because it is really toxic and other problems, Tianzhou-7 itself cannot be unsafe, there may be some comprehensive factors in wearing masks, and, if many people notice, in fact, these products have also been used on other astronaut crews.
For example, during the Shenzhou-16 manned spacecraft mission, astronauts also used these masks.
In fact, the most fundamental reason is for the sake of the safety of the astronauts, and the protective area of this astronaut is not an ordinary protective mask, it is different from the protective mask used in daily life.
It can prevent astronauts from inhaling trace amounts of harmful gases when they enter the cargo spacecraft for the first time, and can comprehensively prevent the inhalation of more than 20 harmful gases such as ammonia, hydrogen sulfide, methanol, acetaldehyde, acetone, toluene, formaldehyde, dichloromethane, ethyl acetate and chloroform.
At the same time, the protective mask for astronauts is a protective equipment that astronauts must wear when carrying out fire extinguishing operations in the event of an accidental fire in the aircraft, so as to prevent toxic and harmful gases from entering the body through the respiratory tract, ensure the health and life safety of astronauts, and have the function of facial protection.
So, it's actually a comprehensive role, but you say that it is anti-virus, and it does have this ability, but it doesn't mean that the Tianzhou cargo spacecraft must be poisonous, which may need to take into account other factors.
So, don't be surprised, but for astronauts, this protective mask is all for the sake of safety, and it can be regarded as a "life-saving" artifact, and as long as it is determined that there is no problem inside, astronauts do not need to wear it.
So, when it comes to the issue of security, I can only say that space is really not ordinary.
Space is more dangerous than you think
That's right, excluding these problems, in fact, there are many dangers in space, for example, during the mission of the Shenzhou 17 astronauts, there was the first out-of-cabin maintenance mission, that is, because the solar wing of the Chinese space station was hit by space junk, and it was hit many times.
It just so happens that this position is also very important, fortunately, after the impact, it did not affect the stable operation of the continental space station, and at the same time, the mainland astronauts went out of the capsule to repair it, however, in every out-of-cabin activity, it is also very dangerous.
For example, in 1965, Soviet cosmonaut and "the first person to walk in space" Alexei Leonov was on a mission out of the capsule, and the extravehicular spacesuit swelled due to the air pressure difference and could not return to the capsule for a while. Fortunately, he decisively took the risk of lowering the air pressure of the life support system, turned his head forward, and desperately rotated his body to return safely.
Therefore, every exit is risky, but unfortunately, robots and other automated equipment cannot completely replace astronauts to perform extravehicular tasks, so it is imperative for astronauts to go out of the capsule.
There is no way to eliminate this, but these things show that space missions are not simple, and space is more dangerous than imagined.
Therefore, all countries in the world call astronauts "heroes", that is really a hero, they are performing tasks with their lives, and it is not an exaggeration to describe them like this.
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