Sure enough, although Japan's moon landing was successful, it was not its own independent moon landing, before I said that Japan belongs to the "second tier" of aerospace power countries, but many netizens said that I was "sour".
As a result, Japan has publicly stated that it is my "sour" cooperation in the SLIM moon landing center, or is it Japan's strength here.
During the previous Indian Chandrayaan-3 mission, I said that both India and Japan belong to the first echelon, and as a result, many people said that I was "too sour", however, from an objective point of view, only China and the United States are the first echelon leading the world's aerospace, and Europe, Russia, Japan, and India are the second echelon.
So, it's not that I'm saying that Japan's aerospace strength is inferior, but that Japan's real strength is like that.
You can take a look at whether China has any help from any other country in carrying out space missions? It is not at all, it is all done independently, and the United States will need to rely on China to go to the far side of the moon in the future.
This is true! Japan did not "land on the moon independently"
That's right, Japan's landing on the moon this year is a big event, and Japan has also announced that it will become the fifth country to land on the moon after the Soviet Union, the United States, China, and India.
However, the so-called "soft landing" that Japan is talking about, to be honest, judging from the photos of the moon released by Japan, the engines are all "facing up", which may really be a hard landing, and in the process of landing, Japan's landing on the moon was not all smooth sailing.
During the landing, the "nozzles" of the engines fell off and could only be maintained by a single normal engine, and at the same time, the solar panels also failed.
So, so that the whole mission is not so perfect, and this is one of the factors that tell everyone why it changed from a soft landing to a "hard landing".
Of course, JAXA also believes that the mission has reached the standard of "minimum success", because the purpose of this mission is to achieve a "precise landing" within 100 meters of the error of the intended target location, even if the error is more than 50 meters, it is considered a success, and the comprehensive score is 60 points.
This further shows that it is indeed difficult to measure whether Japan's mission will succeed or fail this time.
So why is it so difficult to land on the moon? It is true that the mission to the moon is very difficult, and Japan's mission to the moon is not a complete success, but once again it highlights the difficulty of the lunar landing process.
In fact, there are still some technical problems, not all countries can do it, if they all complete the moon landing so simply, then the moon landing will become a "dumpling".
Judging from the analysis, all lunar probes that want to achieve a soft landing have one thing in common, that is, the weight of propellant accounts for a large proportion of the total weight of the probe.
That's because almost every step of the way to achieve a soft landing is precise, requires deep involvement of the propulsion system, and requires a lot of fuel.
This can be said to be much more difficult than the process of the probe flying to the moon, because in the process of flying to the moon, only the orbit needs to be corrected, but in the process of landing, precise control is required.
When the probe soft-lands from orbiting the moon to the lunar surface, it is equivalent to reducing the speed from five or six thousand kilometers per hour to zero, and any slight error in control may lead to a crash, so the entire lunar landing mission is very difficult to implement.
And this time Japan's moon landing is indeed not "completed independently", this is the truth of Japan's moon landing, and not many people say that it can be completed by themselves.
Japan officially announced that there are partners for the moon landing
Well, what everyone says "sour" is really "sour", and Japan has officially announced that it is a cooperative country. Therefore, Japan was able to succeed this time because of the help of some other countries.
According to Japan, most of the equipment for the SLIM mission is manufactured domestically, but part of it is also supported by other space centers, mainly from India and the United States.
So, to put it bluntly, Japan was able to successfully complete the moon landing, but it still couldn't do it independently, so the engine and solar panel were minor problems, and the help of others was the key issue.
India – India's assistance came mainly from the data obtained by Chandrayaan-2, which provided Japan with high-resolution observations during the lunar landing, which helped in the selection of the final landing site.
The United States – The United States also provided data support for the entire landing process in Japan.
Therefore, after Japan's successful landing on the moon, it announced to the outside world that without the support of these countries for space missions, Japan would not have been able to accomplish such a mission.
But compared to some people, I "soured" Japan's space success more directly. Yes, many people are right to say that it is so difficult to admit that others are powerful, but the fact is that Japan did not complete the mission to the moon on its own, but relied on the help of other countries.
And Japan is in the second echelon of the world in terms of comprehensive strength, am I right?
So, it's a very common popular science content in itself, but it turns out to be too complicated for many people, and I didn't say that Japan is strong or not, many people are related, and I can only say that the success of others does need to be learned, but strength is strength, and there is nothing to explain.
The last question is that the United States has to rely on China to go to the far side of the moon, and what is going on here, does the United States not have the strength? There are some interesting things in this.
Why should the United States rely on China to go to the far side of the moon?
That's right, in the relay satellites that go to the far side of the moon, on a global scale, only China has it, and the United States does not have this.
Therefore, if the United States wants to go to the far side of the moon, it must rely on China's relay satellites to realize the transmission of signals, and if the signal is not transmitted, as long as the probe enters the far side of the moon, no one will know where it has gone and what state. So, the relay star is a key point to get to the far side of the moon.
And the United States just doesn't, it's not that the United States doesn't have the strength to research, the main thing is to launch a relay star, which requires a lot of manpower, material resources, funds, etc. to research, and for the United States' return to the moon program, the problem of its own funding is "worse", and it is indeed powerless to disperse to study the relay star.
Therefore, the United States applied for China's help, hoping to use China's relay satellite to the far side of the moon, and of course, China also agreed and agreed to use it.
In 2023, Liu Jingxiang, a Malaysian associate researcher at the University of Science and Technology of China, revealed that China has agreed to the request of NASA and other national aerospace agencies to use the "Magpie Bridge" to help it complete future lunar exploration missions.
Therefore, if the United States wants to go to the far side of the moon, it will have to rely on China, and this is the reason for this.
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