Universe dominance

Jiuquan Space Center, after the mobilization meeting, the entire space center became extremely busy. Every day, space planes took off from here to and from space, transporting scientists and astronauts to the "Tiangong" space station in space. , conduct repeated experiments and inspections on various preparations in the early stage of the manned lunar landing activities,

Wave after wave of unmanned spacecraft were launched to the moon, and they had already begun launching massive supplies to the moon in advance, preparing to build a space station similar to the "Tiangong" on the moon.

"Everyone, please take a look. This is a detailed high-definition picture sent back by the lunar satellite recently. What we have to do now is to choose a suitable place on the surface of the moon as a landing site. Everyone can express their opinions."

In a conference room, a huge monitor played the detailed moon data transmitted back by the lunar satellite, and a moon pattern slowly rotated on the monitor.

The scientists below are thinking carefully one by one. Everyone wears a virtual machine on their wrist. All the data has been sent directly to the virtual machine and then printed into everyone's minds, so everyone basically You don't need to look at the screen, now you are looking at the data one by one in your mind.

"Since we are preparing to establish a manned base on the moon, we must choose an area rich in resources. According to the data from the Resource Spectrum Detection Satellite, the Moscow Sea area is quite rich in resources, and this is The basin formed by the meteorite impact has a relatively flat terrain, which is also very helpful for future resource extraction.”

"No, it's just because it's a basin and the terrain is too low, which makes it inconvenient to exploit resources in the future, and it's also relatively inconvenient to return to space."

"The location of this moon landing can also be regarded as the location for the future lunar base. The selected location should be close to an area rich in resources, and the terrain should be gentle, so that we can lay down a lunar airport later. This is obviously not possible in the Russian Sea, and there are restrictions in the basin. Let’s move our lunar rover to other areas.”

"I think the Wells area is quite good. The terrain in this area is very gentle, and the resources are relatively sufficient. It is also close to the equator of the moon. The lighting conditions are quite good, the temperature is not too low, and it is also conducive to solar energy equipment. operation, obtaining relatively more energy.”

"No, no, although the Wells area is rich in resources, according to the spectrum, the resources in this area are mostly common iron, copper and the like, and there are no precious resources."

"I think the Ocean of Storms area is quite good. There are many rare resources of all kinds, and its area is also large enough. It covers more than 5 million square kilometers, which is larger than half of China."

In the conference room, top scientists were having a heated discussion about where to choose to land. Because it was related to the future lunar base, the discussion was relatively intense.

We must consider not only the future development of the lunar base, but also the difficulty of landing on the moon. Of course, the most important issue is the issue of lunar resources. The lunar base is likely to develop into a frontier base for lunar resource mining in the future. If nearby If there are too few resources, you will have to go to other areas to mine resources in the future.

Transporting materials and mining resources on the moon is not as simple and easy as on the earth. It is likely that the cost will increase greatly if it is only a dozen kilometers away. Moreover, this lunar base is basically equivalent to announcing the occupation of a certain area. This Whether there are precious resources in the block area is also very important.

If you choose an area with only ordinary resources such as iron and copper, there are a lot of these resources on the earth. To exploit them, you will naturally need to mine some very scarce resources on the earth, such as rare earths, He3 and other high-value mineral resources.

In the end, after many discussions, the scientists agreed to place the landing site in the "Ocean Procellarum" area. This area is a very famous lunar maria area on the moon. It is located on the front side of the moon, which is also facing the ground. This area is displayed based on the data detected by resource detection satellites launched in the past.

The "Ocean Procellarum" area is very rich in rare earth resources and also contains rich He3 resources. Moreover, the lunar basalt in this area contains very large amounts of iron, uranium, copper, gold, silver and other metals. It can be said to be a cornucopia. .

Of course, what is more important is that this area is a lunar sea with a very flat interior, which is very conducive to the construction of a lunar base and the later expansion of the lunar base. The location is also near the lunar equator, making it very useful for traveling to and from space.

…

In another conference room, on a huge monitor, a simulated video was constantly playing. In this video, a lunar landing spacecraft slowly landed on the moon, apparently using old-fashioned jet power.

In this conference room, there are also many scientists who are constantly discussing. It is obvious that this group of scientists is studying the moon landing spacecraft.

"There is no air on the moon, and there is no runway, so our aerospace plane has no use at all when it reaches the moon. There is no way to directly use the aerospace plane to travel to and from space like the earth."

"So we must develop a safe, reliable spacecraft that can be recycled multiple times to travel between the moon and space. Only after we build our own runway on our lunar base can we use aerospace aircraft Directly to and from space.”

As top scientists in the field of aviation and aerospace vehicles, Liu Shiying and Li Fu were assigned to this project team and jointly led the team to study spacecraft for landing on the moon and traveling to and from the moon. The two were responsible for the moon landing spacecraft. people.

In fact, the technological content of the lunar landing spacecraft is much lower than that of the aerospace plane. You must know that in the last century, Yingjiang has already landed on the moon and successfully returned. The spacecraft technology used has long been difficult for China. .

However, China's manned lunar landing this time is obviously different from the manned lunar landing in the last century. This time China's manned lunar landing not only involves landing on the moon, but also building a lunar base on the moon. It requires The materials and personnel transported have far exceeded the manned moon landing in the last century.

Naturally, the requirements for spacecraft are higher. They need to use spacecraft with greater thrust, safer, more reliable, stable and capable of continuous recycling. The difficulty has suddenly increased many times.

Unless the base on the moon has been completed and can build a runway for controllable aerospace planes to land and take off, then the spacecraft will have been eliminated. However, there is no air on the moon, and it is impossible for aerospace planes to use air. slow down.

When considering the gravity of a moon, it is only 1.633, which is 1/6 of the earth's gravity. In addition, there is no air. If there is a runway on the moon, it would be very easy and simple for the aerospace plane to take off, but when it lands, It's very difficult.

First, there is no air resistance, so it is difficult to land at this speed. The moon's gravity is too low, which needs to be taken into consideration. Therefore, in the future planning of the lunar base, an ultra-long runway is absolutely indispensable, and the runway can only be used at that time. The friction or the reverse thrust of the design also reduces the speed.

"Li Fu, do you have any good ideas?"

Liu Shiying looked at the many scientists in the entire conference room. When he saw Li Fu, his eyes lit up and he asked.

"Traditional spacecraft can be used to carry people to the moon, but if they are used to transport materials, the cost will be very high, and it is on the moon. We now use rockets to send spacecraft here on the earth. The cost is It’s already very high, let alone on the far side of the moon.”

"And in the future, the resources mined on the moon will definitely be transported to space on a large scale, so I think we should consider designing a cheap aircraft from the beginning."

"Since there is no air on the moon and the moon's gravity is very low, we can actually consider installing a reverse deceleration thrust engine on the aerospace aircraft. In this case, I think it should be feasible and can meet the needs of the moon and back to space."

Li Fu kept pondering in his mind, and after thinking for a long time, he slowly spoke. As soon as Li Fu opened his mouth, he rejected the original plan of using a spaceship to land on the moon, and instead continued to use an aerospace aircraft. Of course, this aerospace aircraft required special operations. Design, a plasma-powered engine is installed in the front, and reverse thrust will be used to reduce the speed of the aerospace aircraft, thereby realizing the plan to land on the moon.

If it were on the earth, due to air resistance and strong gravity factors, it would obviously not work to decelerate the engine in reverse, because no matter how the engine is installed in reverse, it will seriously affect the streamlined shape of the aerospace aircraft and become A lot of resistance.

And when the aerospace plane flies at high speed, the reverse engine will definitely be blown off instantly by the strong air, and the entire aerospace plane will be destroyed.

But the moon is different. The moon has no air, so there is no need to consider air resistance. It doesn't matter what your aircraft design is. This environment is still very similar to the environment in space. However, there is also a factor of gravity to consider on the moon, but the gravity of the moon is not very strong.

After listening to Li Fu's words, the other scientists opened their eyes instantly and couldn't help but nod. This method is indeed feasible, and it also takes into account long-term issues, not just this manned moon landing.

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