인류는 정말 달에 도시를 짓고 살아갈 수 있을까?

Let's say our earth is about to be destroyed due to nuclear war, climate change, and meteorological collisions. If our humanity does not leave the earth, it is definitely the end. If that's the case, where should our humanity go after leaving the earth? In the last video, we looked at whether humanity can build a colony on Mercury and Venus. The first object we will look at this time is the satellite of our earth, the moon. In fact, there has been a lot of discussion about whether or not humans can live on the moon for a long time. John Wilkins of the British Royal Society in 1638 said this in a book called A Lecture on New Worlds and Other Planets. In the near future, there will be a human colony on the moon. And this is becoming a reality through the Artemis Project. The Russian scientist Konstantin Tsiolkovsky, who first introduced the concept of a space elevator, said this. Settling on the moon will be a major step for humanity to become a colony. Since then, as soon as the Apollo project began in the United States, talk about the moon colony began to pour out in earnest. British writer Arthur C. Clarke suggested using an expansion module to make a moon base and cover it with moon dust for insulation. In 1959, John Reinhardt wrote a book called The Basic Standards of Moon Construction in the British Academy of Astronomy. It was never the case that only civilians had these restrictions. The US military also proposed Project Horizon, a plan to build a fortress on the moon by 1967. The U.S. Air Force also proposed the Lunex as a moon landing project before the Apollo program. In many books and media, the fact that humans live on the moon is completely a regular topic. The world's first sci-fi movie, a trip to the moon, a super grande, a unique sea, and a space odyssey. Wallace and Gromit enjoy moon cheese. So, can our humanity build a base on the moon? First, let's look at the positive factors. First of all, the fact that there is water on the moon is a really good factor. A theory by Chandra of India confirmed that there is a considerable amount of water on the surface of the moon in the form of ice. In addition, the more you go to the South Pole, the more water there is. Also, it is said that water was found in the place where the sun rises from the moon. Water is an absolute necessity for the survival of Earth. Basically, we can use it as drinking water. We use it when we wash. It is also necessary when farming. Of course, the water on the moon exists in the form of ice, so we need a separate process to remove the space radiation in the water or the water temperature. But even so, the fact that there is water on the moon is a very positive factor in building a base on the moon. You don't have to carry water from Earth or other celestial bodies to the moon. The positive factor in building a base on the moon is rich resources. There is no standby on the moon, so it directly blocks solar wind. Thanks to this, helium-3 from the sun was piled up on the surface of the moon. It has been piled up since the moon was created. This helium-3 can be used as fuel for nuclear fusion development. If we make nuclear fusion with this helium-3, humanity will have no energy worries for tens of thousands of years. It's a complete energy revolution. In addition, solar wind continues to hit the moon, so the resources are constantly being refilled. For more information on this, please click on the card on the upper right. If you build a base on the moon, you can build a nuclear fusion power plant on the moon and supply energy to the entire lunar colony. Even if nuclear fusion has not been commercialized yet, it is enough to build a solar power plant. There is almost no standby on the moon, but solar wind is directly blocked. That's how efficient solar energy is. So, if you build a base on the moon and live on the moon, you will have no energy worries for at least a lifetime. If you build a lunar colony, it's good because it's close to the earth. The average distance from the earth is about 385,000 km. Apollo 11 arrived on the moon in 4 days. It took 4 and a half months to go to Korea's Danuri, which saves a lot of fuel. The moon is overwhelmingly close to any other celestial body, so there are many advantages. It's good to fly between the moon and the earth, and it's economical because you can save a lot of time and money. The fourth positive factor in the construction of a lunar colony is that the moon becomes a midpoint. The moon will be a very important midpoint in the exploration of the solar system and the exoplanet. What are you talking about? Just go to another exoplanet from the earth. The gravity of the moon is one-sixth of the earth. If a spaceship departs from the moon, you'll use a lot less fuel, and you'll be able to get to your destination faster and farther. And the front of the moon is always looking at the earth, and the back of the moon is always facing the other side of the earth. So if you build a space launch pad on the back of the moon, you'll be able to shoot it in the direction you want. So if you look at the movie Ad Astra, the space goes from the earth to the moon, and then it goes down from the moon and starts again from the launch pad on the back of the moon. The reason I'm doing this is because this method is much more efficient. So in the future, the moon will be a midpoint in the exploration of Mars. When we go further into Jupiter, Saturn, Uranus, Neptune, and the exoplanet, we will use the midpoint on the moon. Now, let's look at the factors that make it difficult to build a moon base. The first is that the moon's gravity is weak. What? You just said it was good because it was weak, and now you're saying it's not good because it's weak? Of course, it's good to shoot something like a rocket, but it's a problem that there's no standby on the moon because the gravity is low. No matter how you try to create a standby on the moon, the gravity of the celestial body is not enough to hold the standby, so it will fly away again soon. The fact that there is no standby doesn't just mean that you can't breathe. In the moon, there is a lack of standby and magnetic field, so the surface is directly exposed to space radiation, solar wind, and UV rays of the sun. In the case of the earth, when dangerous substances such as meteorites enter the atmosphere, they burn and crumble. But there's nothing like this on the moon. It's just that the dangerous substances fall on the surface of the moon. Of course, there's no standby on the moon, so there's no kind of protective film. So the surface of the moon is always exposed to danger. So when you build a moon base, you can build it in a canyon, or you can build it in a cave, or you can dig a hole. Another drawback that can occur due to the weak gravity of the moon is that if we humans spend a long time on the moon, it is not clearly known what effect it will have on our human body. Muscles may be exhausted, and the density of the bones may be lowered. Can't the moon itself be made in an environment similar to that of the earth? There is standby, there is water, and the energy is similar to that of the earth, and there is a magnetic field. But the moon is low in gravity from the beginning, so it is almost impossible to form a standby. Theoretically, there is a possible way, but it is to cover the moon with a completely huge dome. It's a kind of huge moon shield. But this method is too expensive, takes a long time, and is technically difficult. Therefore, several governments are considering building a moon base. It is to build a base on the South Pole, where there is plenty of water resources. This is well depicted in the movie Edhastra. It also appears well in the Chinese movie Moon Man, which is based on the Chinese webtoon Moon Yu. So how are we going to build this moon base? The moon base must withstand the extreme temperature of minus 200 degrees at 120 degrees. It must withstand the radiation of the meteorite, and it must create a place where it can breathe. How the hell are we going to make this? At present, the most powerful way to build a moon base is to use the lunar surface soil and the lunar stone in the moon. It is to build a building with a 3D printer using materials available on the ground. Certainly, it would be much better than carrying cement or iron-like building materials from the earth with a rocket. In fact, NASA has demonstrated the technology of converting lunar dust particles into solid matter through a 3D printer along with the aerospace company Redwire. The research team of the Central Florida University of the United States also conducted an experiment to make a solid brick by spraying the lunar surface soil Regulus. As a result of the study, the brick baked at a temperature of 1,200 degrees was able to withstand the pressure of 2.5 million times that of the earth's atmosphere. In terms of stability, it can be said that it has already received a pass. That's good, but how about using the lava cave in the sea area of ​​the moon as an underground base? This idea is also very good. In fact, it was confirmed that there is a very large lava cave that can accommodate the entire city. If you use this cave, you can avoid potential threats such as solar corpses, spaceships, and meteorites without abandoning large-scale landfills. So, can our humanity build a base on the moon and survive? Building a base on the moon seems to be possible in novels or SF movies, but it seems to be possible in the near future with Luna Gateway's construction plan and Artemis' plan. If there is any news about building a base on the moon, I will make another interesting video. So far, it was a review of the Pacific Ocean. Next time, I'll be back with a Martian movie review. So far, it was a review.