Zhai Zhigang has been working in orbit 100 days. Zhai Zhigang, with his own efforts, successfully ignited the entire astronaut "Sky Mission". He is also affectionately called "the king of the universe" by netizens because of his optimism and humor. Zhai Zhigang has been working in orbit for 100 days.

Zhai Zhigang has been working in orbit 100 days. It has been more than three months since Shenzhou XIII entered the space station. Together with the previous Shenzhou VII mission, Zhai Zhigang has been working in orbit for 100 days. In 2008, when Shenzhou VII flew, Zhai Zhigang became the first astronaut in China. He has completed two extravehicular missions during the Shenzhou XIII mission, becoming the China astronaut with the largest number of extravehicular missions at present.

According to the China Manned Space Engineering Office, Ye Guangfu, the astronaut of Shenzhou XIII, successfully opened the node cabin door of Tianhe core cabin at 1 and 18: 44 Beijing time on February 26th. Ye Guangfu and Zhai Zhigang wore China's new generation "Flying Sky" at 18: 50 and 19: 37 respectively. During this period, Wang Yaping, a resident astronaut, cooperated with the ground manipulator to support two astronauts to carry out extravehicular operations.

It is understood that the implementation of extravehicular activities is becoming the normal state of mission work in the space station stage. Subsequently, China astronauts will carry out more and more complicated extravehicular activities, which will provide strong support for the smooth construction and stable operation of the space station.

Zhai Zhigang set a record for the third time.

On the evening of February 26th, Beijing time, 12, the astronauts of Shenzhou XIII traveled collectively for the second time.

18: 44, astronaut Ye Guangfu opened the hatch and took the lead in getting out of the cabin. Finally, he had a chance to say, "I'm out of the cabin and I feel good!" "

This also represents the Shenzhou-13 astronauts carrying out the extravehicular mission in groups.

Subsequently, Zhai Zhigang also successfully left the cabin, which was his third time, setting a new record for China astronauts!

In the Shenzhou VII mission in 2008, Zhai Zhigang, with the cooperation of Liu Boming and Jing Haipeng, carried out the first extravehicular mission in China's space history, which was once "conflicted".

Since the first extravehicular activity on165438+1October 7, Shenzhou XIII astronauts have successively carried out many tasks such as on-orbit medical examination, space real (trial) inspection, space station platform inspection, daily care, etc., carried out on-orbit training in emergency evacuation, medical rescue and other subjects, and successfully completed the first space teaching in Tiangong classroom.

The crew of Shenzhou XIII astronauts is in good condition, and the space station assembly runs stably.

Is it dangerous to leave the cabin?

Considering that on June 5438+065438+/KOOC-0/October/KOOC-0/5, Russia launched a D -ASAT missile to destroy the universe-/KOOC-0/408 satellite and create a lot of space junk, the International Space Station once postponed the astronauts' extravehicular activities. Some friends are worried that our astronauts will be in danger when they leave the cabin this time.

Americans say that Russian anti-satellite tests have produced 1500 traceable chunks of debris. In fact, even if there is no universe-65,438+0,408, there is still a lot of space junk going around the earth.

According to the estimated data of the European Space Agency (ESA) in 20 1 9, there are 34,000 fragments larger than 10 cm in the orbit around the earth, and there are about 900,000 fragments from 1 to 10 cm, with the size exceeding1cm. In contrast, 1500 Kosmos- 1408 is really nothing.

Although most space junk is a bit big, its destructive power is not small at all.

Suppose a small screw weighing 8 grams collides with the space station at a relative speed of 7.68 km/s, what will happen? Through the kinetic energy theorem, we can calculate that the impact kinetic energy of this small screw reaches 236,000 Joules, which is 1 18 times that of AK47 bullet! If such a small thing hits the space station, it will probably puncture the cabin.

Astronauts will wear heavy white extravehicular spacesuits when they leave the cabin. This suit is like a miniature manned spaceship. It can not only provide astronauts with oxygen needed for breathing, suitable temperature and pressure, heat dissipation and absorption of waste water and waste gas, but also provide astronauts with all-round protection: the extravehicular spacesuit can resist the impact of a certain dose of cosmic rays and meteors.

Micro-meteors are mostly tiny particles erupted by comets, and their volume and mass are mostly very small, so even if they are very fast, their impact kinetic energy is not very large, and they can be absorbed and dissolved by spacesuits.

Compared with meteors, many space debris are metal particles. Even the 0.08g space debris as big as sesame has the same impact kinetic energy as the bullet fired by AK47 rifle. If you are hit by this kind of space junk, no matter where the spacesuit is, it will cause astronauts to be injured, and the spacesuit will leak and lose pressure, which will threaten the life safety of astronauts in a few minutes.

ESA has done experiments on spacesuit materials, and the results show that no spacesuit can withstand the attack of small debris, and the consequences of any impact are extremely serious.

So, every time astronauts leave the cabin, they are gambling? They always risk losing their lives? It's right in a sense, but it's a bit exaggerated.

There are indeed hundreds of millions of debris in space, and they are flying at an extremely fast speed. If they are hit by it, the probability of injury is high, but the probability of being hit is extremely low-because the space is too vast.

In May, 20021year, during a routine inspection, the International Space Station found a small hole in the mechanical arm. After analysis, scientists believe that this small hole is caused by a space junk the size of sesame. The good news is that the mechanical arm can still be used, and there is no bone injury.

Zhai Zhigang has been working in orbit 100 days. It has been more than three months since Shenzhou XIII carried its crew into the space station. Together with the previous Shenzhou VII mission, Zhai Zhigang has been working in orbit for 100 days.

The news that China Shenzhou XIII manned spacecraft was launched into the sky spread all over the Internet, and netizens joked that "the end of the universe is the Northeast".

This stalk comes from the astronaut Zhai Zhigang of Shenzhou VII and XIII.

As a Northeastern, Zhai Zhigang almost has the "taste" of the Northeastern. Whether interviewed by the media or facing CCTV cameras, he has no idol burden, one stalk after another, one burden after another.

For example, when asked what it was like for Shenzhou VII to perform an extravehicular mission, he raised his eyebrows and waved his hands, demonstrating the scene of "it seems that someone kicked him from behind his ass and mentioned the opposite side".

He also vividly described the scene of space. "I looked down at my feet. My god, this is too deep, too deep, too far, bottomless! I must catch it ... "

Even he is worried about the earth. "The earth is also hanging in the sky. I am afraid that the earth will float away from the sky. "

As a result, Zhai Zhigang succeeded in bringing fire to the entire astronaut "celestial group" by his own efforts, and he was affectionately called "the king of the universe" by netizens with optimism and humor.

So how was the "king of stalks" tempered, and why did he set foot in the universe twice? Let's have a look!

I have a dream of flying since I was a child.

When I was a child, Zhai Zhigang only saw the spaceship from books. At that time, the United States and the Soviet Union launched a space race, and the development of spacecraft and the construction of space stations were almost in no particular order.

But China, which has just recovered from economic construction, is still very poor, not to mention a spaceship and several planes.

Zhai Zhigang's parents are ordinary farmers in Heilongjiang. His father lives by farming, and his mother usually sells roasted seeds and nuts to subsidize her family. As the sixth child in the family, Zhai Zhigang experienced the hardships of life from an early age.

First, after the early death of his father, the pillar of the family fell. Not only did I lose my livelihood, but even eating at home became a problem. Mother is a strong woman. She would rather work hard to send her children to school and change her fate by knowledge.

Zhai Zhigang was deeply influenced by his mother's thoughts. Almost since he was sensible, he has helped with the housework at home. He often heats the oven cavity while doing his homework, saving a lot of time when frying melon seeds.

But it's too hard for my mother to get up early every day. She is not only tired, but also ill.

Zhai Zhigang was distressed by his mother and once wanted to drop out of school to help her. Unexpectedly, the gentle mother lost her temper. Trembling with anger, she said to Zhai Zhigang with tears in her eyes:

"Zhigang, I don't want you to help me. What can I promise in the future if I don't go to school? I have been blind all my life and lost my education. Are you going blind now? Study hard, mom will wait for you to live a good life in the future! "

Under the guidance of his mother, Zhai Zhigang abandoned other distractions and devoted himself to reading this book.

1985 was admitted to Changchun Flight Academy with excellent results and became a college student. This result also made the tired mother's eyes red. On the day she left, she didn't go out to fry melon seeds, but borrowed a "huge sum" from her neighbor, just to buy Zhai Zhigang a big bag that can hold luggage.

Under the reluctant watch of his mother, Zhai Zhigang embarked on a train to Changchun. In college, he was exposed to planes and spaceships that he could only see in books before, which opened his eyes.

And his deep dream of "flying" is becoming clearer and clearer. 1998, with excellent technical ability and strong physical fitness, became a member of the China People's Liberation Army Astronaut Brigade 14.

And his "flying" journey has just begun.

Two alternatives, multiple zeros, only for the five-star red flag flying in space.

From pilots to astronauts, Zhai Zhigang's most obvious feeling is that the training intensity is several times greater.

Once in training, he had to sit in a rotating chair and experience high-speed inversion and rotation. If you have been on a roller coaster in an amusement park, you can understand the feeling of weightlessness, but all the events in the amusement park last for a few minutes, and they all start by the hour in the astronaut training room.

So, Zhai Zhigang held his breath when he sat in the swivel chair. Because, being able to endure the physical oppression in high-speed weightlessness, it will be safer to face the rapid lifting of the spacecraft in the future.

But soon, he found that the training intensity was greater than before, and he had to bear 8 g of gravity acceleration almost every second, which was equivalent to tying a person to a yo-yo and then waving his arm at high speed.

If he is an ordinary person, he may not be able to stand it at once, and he will definitely give up the next training. However, Zhai Zhigang gritted his teeth and never stopped. Finally, he tried to keep his balance when he left his seat.

But after endurance training, the later training is even more "inhuman".

For example, astronauts are also required to go underwater for adaptive training. Because space is a vacuum, simply walking and talking are problems. In order to better help astronauts adapt to the space environment, simulation training is essential.

Water is an almost vacuum environment. After entering the training room, astronauts will find floating objects all around. If they want to raise their hands a little, they will also feel a strong sense of oppression, all because of the influence of water pressure.

Adaptive training is to keep the body's memory. Astronauts stay underwater for seven or eight hours. Only with superhuman perseverance and will can they complete the training task. When they are pulled out of the water, they are often exhausted.

Zhai Zhigang once stayed so long that he couldn't even hold the bowl and use chopsticks.

In this day-to-day "devil" training, Zhai Zhigang quickly grew into an excellent astronaut. His physical fitness is always the best in the team, and his professional skills and level are also top-notch.

Therefore, after Yang Liwei was elected as the official candidate of Shenzhou 5, Zhai Zhigang, as a backup, was always waiting for the call of backup, even at the last second before the rocket launch, ready to fly into space.

This backup experience has given Zhai Zhigang greater confidence. He believes that he will be able to board the spaceship next time.

Time came to 2005, Zhai Zhigang once again entered the field of vision of the tryouts with excellent training results, but in the end, the goddess of opportunity did not care for him. He became a backup staff again, repeating the last experience.

At this point, he is already an old-timer in the team. In the face of these younger generations, he never puts on airs, but does it himself. The questions raised by the younger generations are often generous and responsive.

In this way, he successfully completed the backup task and won unanimous praise from the astronaut brigade.

In the selection of Shenzhou VII, Zhai Zhigang was well-deserved as the commander-in-chief, shouldering an extremely glorious mission: to walk in space and let the five-star red flag fly in space.

When Zhai Zhigang, wearing a spacesuit, stepped out of the spaceship and unfurled a bright five-star red flag, hundreds of millions of viewers in front of the camera were in tears. He made two choices and returned to zero many times. This man boarded the spaceship just to fly the five-star red flag in space.

Knowing my destiny, I once again embarked on a journey to explore the universe.

Zhai Zhigang's legend does not stop there. After the successful return of Shenzhou VII, he still stuck to the front line of training.

He almost maintained the same training intensity as when he was young, and entered the training cabin day after day, from rotation to water and then to water. Every step of the way, he strives for perfection, just to adapt to the real outer space environment as much as possible.

One year, two years, three years, six years ... For thirteen years, Zhai Zhigang kept his original intention and sweated in the training room just to board the spaceship again and step into space.

His persistent ideal finally paid off. When the official staff of Shenzhou XIII was announced, Zhai Zhigang, who was 55 years old at that time, was impressively listed, and his other two companions were all born after 80.

Along the way, Zhai Zhigang has experienced numerous misunderstandings. Many people don't understand. "I have been to space once and experienced the feeling of a spaceship. Why do you have to work so hard just to get on the spaceship again? "

Faced with such confusion, Zhai Zhigang's answer has never changed.

Before becoming an astronaut, he was first of all a People's Liberation Army. Facing the call of the motherland and the people, he did not hesitate to put aside his personal safety and would rather work hard for it for five or ten years.

So he said, "The Party and the people have given us lofty honors, and the motherland entrusted us to fly into space. Our only task is to go out for our country. As long as the party gives the order, we are ready to go to space again! "

At the launch site of Shenzhou XIII, Zhai Zhigang strode forward. There is no trace of time in his footsteps, but he conveys a youthful vigor, which makes people excited at first sight.

Therefore, when the reporter asked him "what do you think of this half-year space trip", Zhai Zhigang smiled and said to the microphone that landed, "We are full of confidence!"

Perhaps, for Zhai Zhigang, this is another new attempt. The vast universe is waiting for him, and even the "golden sentence" that netizens are most looking forward to is on the road, brewing to meet with you.

Zhai Zhigang has been working in orbit 100 days. According to the People's Daily, it has been more than three months since Shenzhou XIII carried its crew into the space station. Together with the previous Shenzhou VII mission, Zhai Zhigang has been working in orbit for 100 days.

In 2008, when Shenzhou VII flew, Zhai Zhigang became the first astronaut in China. He has completed two extravehicular missions during the Shenzhou XIII mission, becoming the China astronaut with the largest number of extravehicular missions at present. Like "the king of cosmic stalks"!

During the Shenzhou VII mission from September 25 to 27, 2008, he served as the commander of the spacecraft and was the first person to leave the cabin in China.

At 0: 23 Beijing time (202 1, 16), the Long March II F-13 carrier rocket carrying the Shenzhou XIII manned spacecraft was ignited and launched at Jiuquan Satellite Launch Center. Shenzhou XIII manned spacecraft successfully separated from the rocket and entered the predetermined orbit, successfully sending three astronauts, Zhai Zhigang, Wang Yaping and Ye Guangfu, into space. The pilot was in good condition and the launch was a complete success.

165438+1At 20: 00 on October 7, according to CCTV news, Shenzhou 13 astronaut Zhai Zhigang has left the cabin. 12 On February 26th, the crew of Shenzhou XIII was carrying out the second extravehicular activity.

At 0: 55 on February 27th, 65438, after about 6 hours, the Shenzhou XIII astronaut successfully completed all the scheduled tasks of the second extravehicular activity. Astronauts Zhai Zhigang and Ye Guang Fu safely returned to the Tianhe core cabin, and the extravehicular activity was a complete success.