On the other side, Jinling.

In the Xinghai Research Institute, when Xu Chuan was coordinating the preparatory work for the manned landing on the moon, footsteps came from the corridor outside the door. There was a few knocks on the door, and then a woman pushed it open.

Xu Chuan looked up, and it was one of his assistants on the side of the Xinghai Research Institute, Ou Jingling, who walked in.

For him, the number of assistants is now in the double digits. There are six people in the Xinghai Research Institute alone, of which four assistants correspond to the work of the four major research institutes of energy, aerospace, information and materials, and the remaining two are responsible for the overall daily work.

And Ou Jingling is one of the assistants in charge of daily work. (Simple to make up, the number of assistants before was too small.) ）

"Professor, Professor Wu Weihua and Professor Han Zhixin from Huanong University are in the reception room and want to make an appointment with you to talk about the development of the lunar surface planting center."

Ou Jingling walked in quickly and reported softly.

Hearing this, Xu Chuan was slightly stunned for a moment, and asked, "Huanong University?" Academician Wu? ”

Ou Jingling nodded and said, "Well, Academician Wu said that if you have been busy recently, it doesn't matter if you can wait for the manned lunar landing project to be completed and then make an appointment." ”

Xu Chuan thought for a moment and said, "Please invite them over." ”

Although the work of dealing with the manned lunar landing project has been busy recently, it is not impossible to spare any time.

An academician-level bull came over in person, and this face still has to be given anyway.

"Okay."

Ou Jingling answered and walked out quickly.

After a while, under her guidance, two middle-aged and elderly men followed in.

"Academician Xu, let's meet again." In the office, Professor Han Zhixin, who had come to the Xinghai Research Institute to receive experimental samples before, walked up quickly and warmly stretched out his hands to say hello.

Xu Chuan greeted with a smile and shook hands with the professor at South China University.

The last time I talked to Professor Han Zhixin about the planting center on the surface of the moon, it was just an idea of his, and it was not decided.

However, it is obvious that this Professor Han is interested, not only in his heart, but also with the academician of the University of South China who came over in person.

"Academician Xu, allow me to introduce it."

After saying hello with a smile, Han Zhixin opened his mouth and introduced: "This academician of our Huanong University, Wu Wei Huawu, specializes in research in the field of plant physiology. After I went back last time, Academician Wu heard that you wanted to get a monthly table planting center, he was quite concerned about this matter, and I knew a lot about it. ”

Xu Chuan stepped forward with a smile and stretched out his right hand to beckon, "Hello Academician Wu." ”

Wu Weihua had a smile on his face, and stepped forward to greet Xu Chuan warmly: "I have heard of Academician Xu's name for a long time, and when I first saw him today, Academician Xu is really as young and promising as the legend." ”

"You're welcome, let's sit down first."

Xu Chuan greeted with a smile, and the three of them sat down on the sofa in the office.

After Ou Jingling served the hot tea, several people exchanged a few words, Wu Weihua cut to the point, and said with a smile: "I took the liberty to come over to disturb Academician Xu's work in the early stage of the moon landing, please bear with me." Mainly about the lunar planting center, this kind of thing is too attractive for agricultural workers. ”

Xu Chuan said with a smile: "Academician Wu is serious, what is there to disturb or not, eating a full stomach is the most important thing." ”

After a pause, he continued, "I've really considered this kind of thing as the Moon Cultivation Center, but it's just an idea for now. What is the specific situation, we still need to wait for the completion of the manned lunar landing of Xinghai to analyze it. ”

"After all, the situation of lunar soil is indeed not very suitable for cultivation at present, not to mention the lack of necessary nutrients, and contains harmful substances such as helium III."

Wu Weihua nodded, and said with a smile: "I understand, this kind of work in the Moon Cultivation Center is indeed not so easy to do. ”

"But if you think about this kind of project, the goal should not be just for the cultivation of the moon, right? Subsequent development of Mars and future interstellar colonization, alien planting in your heart, Academician Xu, I speculate that the importance should be not low. ”

Xu Chuan nodded and said with a smile: "Indeed, after all, the people take food as the sky. No matter where you are, ensuring the supply of food is the first element of survival, and only by surviving can we talk about the future and pioneering. The Lunar Planting Center is indeed partly due to future interstellar development. ”

To be honest, if it weren't for the preparation for future interstellar development, the Moon Cultivation Center wouldn't be very valuable.

After all, the current soilless cultivation technology is quite mature, and most of the crops can be harvested one by one, as long as the nutrient solution and planting rack are prepared, as well as the appropriate planting greenhouses and other equipment.

It's much faster and easier than the effort of building a monthly surface planting center.

The significance of the lunar planting center is not simply to provide food for lunar colonization, but to have scientific research value.

After all, the unique environment of the Moon, whether it is low gravity or soil containing substances such as helium-3, is not available on Earth, and can also provide a variety of experiences for space cultivation.

Wu Weihua nodded with a smile, and continued: "Yes, but compared to a simple lunar surface planting center, is Academician Xu interested in listening to my thoughts?" ”

Xu Chuan smiled and said, "Of course, Academician Wu, please speak." ”

Wu Weihua pondered for a while, and after organizing a meeting, he spoke: "Personally, compared to a planting center used for scientific research, if you want to prepare for the development of interstellar colonization, wouldn't it be better to simulate the construction of a closed biosphere on the earth to do survival experiments, and have more scientific research experience?" ”

"Closed biosphere experiments?"

Xu Chuan was stunned for a moment, then reacted to what the other party was referring to, and said, "Do you mean the type of Biosphere 2?" ”

Biosphere II.

This name must be familiar to everyone, whether it is junior high school or high school, this is one of the knowledge points that must be tested in biology.

It is a miniature artificial ecological circulation system built in the desert north of Tucson, Arizona, and is named to distinguish it from Biosphere 1 (the earth itself).

It was started by a former rugby player, John Allen, and funded by several consortiums in the United States, and took eight years to complete.

Once completed, Biosphere 2 was almost completely sealed, simulating all ecosystems on Earth, including deserts, swamps, thorn bushes, rainforests, savannahs, and even oceans.

About 4,000 species have been introduced into the enclosure, including about 3,000 species of animals and plants, and about 1,000 species of microorganisms. The aim was to create an artificial simulated life support system to verify whether humans could survive on solar energy alone after they left the Earth.

However, after four years of experimentation and two successive experimenters, this large-scale scientific research project finally failed.

Judging by the results of Biosphere 2's experiments, Earth may be the only home suitable for human life.

For all countries, this experiment has also brought enough warnings that protecting the earth's ecological environment and maintaining ecological balance are also important tasks that go hand in hand with development.

Unfortunately, there are not many countries that are actually trying to protect the earth's ecological environment.

Opposite the sofa, Academician Wu Weihua nodded with a smile and continued: "My idea is actually very simple, with the launch of our Xinghai and the increasing maturity of aerospace technology, interstellar colonization and development are just around the corner. ”

"But colonizing aliens isn't an easy task, at least, you need a permanent colony base, right?"

"Biosphere 2 was originally intended to demonstrate the viability of enclosed ecosystems to support and sustain human life in outer space. Although it failed later, it also brought us enough experience. ”

"If Biosphere 2 were to be restarted and Biosphere 3 to be experimented again, with a controlled fusion reactor as an energy supply system, I believe it would have a much greater chance of success than Biosphere 2."

"Including lunar surface planting centers, it can also be simulated by manipulation in Biosphere 3 by collecting lunar soil."

Wu Weihua simply said what he thought in his heart, and the purpose of his coming today was not only for the Lunar Cultivation Center, but also for the idea of starting Biosphere 3.

As he said, with the maturity of space technology, the opening of the Xinghai manned spaceflight, and the establishment of permanent bases on the moon and even Mars, colonies are all within reach.

If the Biosphere 3 project is restarted, it can provide sufficient experience and conditions for the colonization of the Moon, Mars and other planets.

However, in China, there are not many people who have the ability to do such a thing as starting Biosphere 3.

The failure of Biosphere 2, while not a complete rejection of this path, is enough to make countries carefully consider investing in it.

After all, if you want to talk about how many top-notch technologies and benefits such a large-scale scientific research project has, there are probably not many, at least it must not be comparable to controlled nuclear fusion technology.

But correspondingly, the investment in the Biosphere Programme is not small.

Biosphere 2 consumed 1.5 billion meters of gold just to build, or rice gold in the nineties of the last century, which shows that it is also a gold-swallowing monster.

To propose to the top of the state to build their own Biosphere 2, his title of academician Wu Weihua must be sufficient.

But if it is said that it can impress the plan approved by the above, the probability is low.

After all, there is also a gap between academicians and academicians.

In the office, Xu Chuan listened carefully to Academician Wu Weihua's thoughts.

From the relevant ideas and suggestions, it can be heard that this academician Wu is seriously considering.

His plan for Biosphere 3, although derived from Biosphere 2, did not follow the same model as Biosphere 2.

In his thinking, Biosphere 3 is not a completely independent ecosystem, allowing for the replenishment of external materials, and can be adjusted by a controllable nuclear fusion reactor as the core energy source, simulating different alien conditions such as different temperatures and irradiation, so as to maximize the matching and adaptation to the alien environment.

I have to say, this suggestion is indeed quite good.

After listening carefully to Academician Wu Weihua's suggestion to restart Biosphere 3, Xu Chuan thought about it seriously and said:

"If that's the case, why not build this Biosphere 3 on the moon?"

Hearing this, Wu Weihua and Han Zhixin were stunned.

"Build on the moon?"

Xu Chuan nodded and said with a smile: "After listening to Academician Wu's suggestion, I think the feasibility of the biosphere program is still very high. The development and expansion of outer space requires permanent colonization bases, as well as plants, organisms, and animals. ”

"The Biosphere 3 idea proposed by Academician Wu is actually very similar in nature to the space city that will be used for colonization in the future."

"If that's the case, I think we can build this Biosphere 3 on the surface of the moon for experiments."

On the sofa, Han Zhixin couldn't help but swallow his saliva, and felt shocked by Xu Chuan's plan.

Originally, they wanted to restart the biosphere program on Earth, build a biosphere 3 belonging to Huaguo, and make a pilot project for the future sky development and lunar colonization.

Unexpectedly, this person directly wanted to repair this Biosphere 3 to the surface of the moon.

This handwriting, big is simply it. In a frenzy.

On the side, compared with Professor Han Zhixin's shocking speculation, Academician Wu Weihua, who was also sitting on the sofa, did not think so much, he was seriously thinking about the feasibility of building Biosphere 3 on the lunar surface.

But frowning and thinking for a long time, he didn't think of how this project should be moved from the earth to the moon, and all conditions did not allow it.

Frowning and thinking for a while, he looked up at Xu Chuan and said cautiously: "Although it sounds beautiful to move the biosphere project from the earth to the moon, there are some huge problems that may be encountered in the middle, such as construction materials, water resources, animal and plant resources, how to solve them?" ”

Xu Chuan: "It's true that building materials are a nuisance, but it's not impossible to solve. ”

"At present, robots and artificial intelligence have been quite developed, and on the basis of controllable nuclear fusion technology has solved the energy source, the fusion reactor is used as the core, and the conventional base is first developed on the lunar surface."

"Then the construction project will use the abundant titanium resources on the lunar surface and ordinary silicon-based materials to make the skeleton of the biosphere, concrete and glass, which can greatly reduce the cost of construction."

Hearing this, Academician Wu Weihua quickly asked: "Even if the construction materials can be taken from the surface, what should be done with water resources, animal and plant resources?" ”

Xu Chuan said with a smile: "Water resources can also be obtained from the lunar surface. ”

Hearing this, Wu Weihua immediately showed a puzzled expression, a little puzzled.

Xu Chuan smiled and continued: "Regarding water resources, the Xinghai Research Institute has been carrying out unmanned lunar landing activities for the past two months, and the two activities before and after include some scientific research. ”

"Well, to put it simply, we have found some ice resources in some places on the moon, and the amount of them should be enough for us."

"Of course, I can't disclose the specific information for the time being, because this news is still confidential, and I hope you two don't disclose it."