The breakthrough in the project of Xu Rui's research project is officially made by making more than 100 hollow tubes of high-temperature resistant limit materials in the space laboratory, which can form three controllable nuclear fusion reactors.

These hollow tubes are transported to the space shuttle in a group of 10 pieces, and the intelligent robot is transported in a single piece, and it is very laborious to transport a group to the space shuttle.

Cheng Yuhua saw that Xu Rui was still eager to try, and he was also ready to load this extremely massive hollow tube.

He immediately solemnly reminded: "Scientist Xu, it is no longer possible for you to load this kind of pipeline to the space shuttle.

The mass of this pipe is so great that our shuttle has a limited load rating and can no longer take on much. ”

When Xu Rui heard Cheng Yuhua say this, he immediately reacted, this high-temperature resistant limit material is too dense, don't look at its size, but the mass is very heavy, just 10 pieces are close to 500 tons of weight.

Each one weighs about 50 tons, which is heavier than the weight of a large truck.

"Seeing them so small, I've already forgotten a little about their huge mass, which can only be transported many times by the space shuttle." Xu Rui smiled and said.

Cheng Yuhua reminded again: "Scientist Xu's scientific research mission has been completed, and we have lived here in the space laboratory for more than two months, but the water and food are not sufficient, whether we will return to Earth."

Xu Rui nodded and said: "I have solved the problem of material production, the quantum computer can control the production of materials according to the program, and I don't need to stay here in the space laboratory."

It's time for us to return to Earth, and the Spark Science and Technology Research Institute has more important tasks to complete. ”

After Cheng Yuhua learned of Xu Rui's wishes, he immediately prepared to return to work.

First, he notified the space command center on the ground, asked for the space shuttle's return plan, and at the same time sent a message to the space station that he would come to welcome Wei Ziping back to Earth in the near future.

In the space station living module, Wei Ziping received a communication from Cheng Yuhua, he was a little reluctant, but he knew that he had to return to Earth.

Wei Ziping walked out of the cabin where he lived and came to the public cafeteria.

The space station has changed dramatically, most notably with more people.

The space station is no longer made up of two or three people, the population here has reached 78 people.

With the advancement of launch vehicle technology and the use of protective cockpits, the requirements for astronauts have plummeted.

With Huaxia's huge astronaut reserve, a very large number of qualified astronauts can be found.

All of them have been sent to the space station by the state to train them, and the country has also discovered that space will be the most competitive field in the future.

Now it is necessary to train experienced astronauts to make reserves for the era of great aerospace development in the future.

Wei Ziping came to the cafeteria, the dishes here are all the same materials, most of the meat is pork, only when the space shuttle or spaceship arrives, can the food be improved.

But the canteen has an abundance of vegetables, and all the common vegetables on the planet are found here.

Wei Ziping saw that there were a lot of people in the cafeteria, and he said with some excitement: "Thank you for taking care of me during this time, I am about to return to Earth."

If any astronaut is not feeling well, he can also ask the ground command center for instructions and return to Earth with me. ”

Even if an astronaut is trained for a long time, the human body is too fragile, and the body begins to decline after living on the space station for a while.

This is a disease caused entirely by adaptation to the soil and water, which can only be alleviated but not treated by modern medical methods, and can only be recuperated by returning to the earth.

A medical room has been set up here on the space station, which is equipped with an intelligent medical robot that can receive instructions from medical experts on the ground.

With the use of advanced medical equipment such as artificial organs, intelligent medical robots can solve the problem of space station astronauts even if they suffer from emergency diseases.

However, for some diseases that modern medicine is helpless, intelligent medical robots are helpless.

Wei Ziping came to the space station for two months of exchanges, and he had already seen several astronauts who were a little unwell, so when he left, he invited them to return to Earth together.

It's just that because of the collective honor of astronauts or other factors, some people want to continue to persist on the space station, and Wei Ziping did not name them.

After Wei Ziping finished eating in the cafeteria, he came to work in the agricultural standard cabin.

At present, the space station not only undertakes scientific research and training tasks, but also undertakes some production and life tasks.

The work in the industrial cabin is the easiest, and you can use your free time to make some small crafts for yourself.

But there is a need for engineers there, and Wei Ziping does not have this technical skill, so he can only come to work in the agricultural standard cabin.

There is a lot of work here in the agricultural standard cabin. The planting area is full of hydroponic plants, and the usual maintenance and harvesting are all done by intelligent robots.

The work here is only to observe and record the growth of plants.

Some astronauts have a high level of scientific literacy, and they can also be mentored by scientists on the ground. Cultivation of new species is carried out.

Wei Ziping saw the planting area covered with a glass cover, where the plants grew luxuriantly.

He sighed a little about the greatness of life, and these plants can grow very well even in the extreme environment of the space station.

Wei Ziping walked towards the pig barn where he worked, the only livestock raised on the space station.

He found that these pigs were slightly different from those on Earth.

The pigs here in the space station are more clean and lazier.

Wei Ziping estimated that the oxygen intake was insufficient, and there was not enough oxygen here in the space station for the pigs to breathe freely.

They can only breathe fresh oxygen through an oxygen tube.

With a little strenuous exercise, oxygen will appear insufficient, and these pigs will develop the habit of not liking exercise.

Wei Ziping took the hogweed and began to feed the pigs, which were made up of fresh space plants.

They are excellent feeds and provide enough nutrients for pigs.

Wei Ziping heard that scientists are now using plant cloning to verify the safety of space plants.

When scientists come up with authoritative results, these plants will be on the human table in the future.

Wei Ziping didn't wait long, he soon received the news of the arrival of the space shuttle.

Wei Ziping said goodbye to the astronauts of the space station, and he took the three astronauts who were about to leave the space station and returned to the space shuttle together.

Cheng Yuhua saw that Wei Ziping and the others had already entered the space shuttle, and immediately separated the space shuttle from the space station. Heading in the direction of the Earth.

The space shuttle entered the automatic cruise state, and Cheng Yuhua asked Wei Ziping: "You have lived on the space station for so long, what do you think of the space station?"

Wei Ziping said with some excitement: "Our country's technical level is superb, and the construction of the space station is really good.

I lived on the space station, similar to life in the astronaut training center, and I didn't feel much change at all.

The space station also has an agricultural standard module and an industrial standard module, and there is already potential for sustainable development here.

In particular, the astronauts of the space station are full of energy, and they are burning themselves for the development of China's aerospace industry. ”