Good news! China's Chang'e-6 has arrived home, and the samples on the far side of the moon will bring back a breakthrough for mankind.
Because this sample on the far side of the moon is the first lunar sample obtained by human beings for the first time in the world, its uniqueness has long been hotly discussed by countries around the world, and it is expected that China will share it with the world after getting the lunar sample.
Therefore, Chang'e-6's every move on the road has attracted the attention of the world, so let's take a closer look at what is going on.
The first for mankind! Chang'e-6 lunar soil arrives home
That's right, humans have collected lunar samples 10 times, but all of them were missions on the front side of the moon, and this time the mainland Chang'e-6 was a lunar sample collected from the far side of the moon, and it was the first sample from the far side of the moon.
This will inevitably open up a new history of human understanding of the moon, so it is really exciting to see Chang'e-6 lunar soil arrive home.
However, on the way back to the moon of Chang'e-6, it also faced many difficulties, which is not as simple as everyone thinks, because the launch of Chang'e-6 is relatively simple, but in the process of returning home, it is very difficult, so how difficult is it?
In the process of returning to Earth, Chang'e-6 will bring samples from the far side of the Moon, and need to go through the "many checkpoints" set by the Earth, and the returner will rush to the Earth at a second cosmic speed of 11.2 km/s, at an altitude of 120 kilometers above the ground, like a warhead piercing into the atmosphere.
Soon, with the help of the lift of the atmosphere, the warhead jumped out again, returned to space, reached the highest point, descended again, and entered the atmosphere for the second time. In this way, one out and one in, the returner slowed down, from the second cosmic velocity to the first cosmic velocity of about 8 km/s.
Next, like the previous Shenzhou spacecraft return capsule, it slowed down while passing through the atmosphere, opened its parachute ten kilometers above the ground, and slowly fell to the ground. In this process, any step that goes wrong can lead to the failure of the task.
Therefore, the "space drifting" technology adopted by the mainland, which is what everyone calls a semi-ballistic jump reentry and return, can realize the mitigation of the Chang'e-6 returner, so that the lunar samples on the far side of the moon can be brought back stably.
Obviously, this process is the most critical point on the way back, and it is also the most difficult.
However, this technology has been fully mastered by the mainland, and it is not the first time that it has been carried out, so it can be perfectly controlled and the full implementation of the Chang'e-6 mission can be completed.
No, the first of humanity! Chang'e-6 lunar soil arrives at home, and the next step is to conduct research on Chang'e-6 lunar samples.
The Chang'e-6 lunar sample has been obtained, and the world is looking forward to sharing
That's right, after the Chang'e-6 lunar sample continent was obtained, many countries in the world have focused on it in advance, that is, looking forward to China sharing the Chang'e-6 sample, and the mainland has also publicly stated that it is willing to share it with other countries in the world.
Therefore, the Chang'e-6 sample will appear in the case of Chang'e-5, sharing the results of the samples on the far side of the moon with the world, however, the problem of sharing with the world sooner or later will highlight the results of Chang'e-6, because the earlier it is given, the more scarce breakthrough achievements may be discovered abroad.
Therefore, it is still uncertain when the mainland will share, but it is just said that it will be shared. So what can Chang'e-6 achieve?
In fact, as mentioned above, it is the first sample of the far side of the moon, so it must be possible to achieve the greatest achievements in every step of exploration, such as: quickly know the formation process of the lunar south pole-Aitken basin, and whether the lunar south pole-aitken basin contains different lunar minerals and moon rocks.
Even finding the footprints left by the ancient moon in the Moon's South Pole-Aitken Basin, etc., these achievements will be an aspect of humanity's understanding of the Moon.
At the same time, after the major breakthrough of Chang'e-6, combined with the success of the lunar samples of the mainland's Chang'e-5, the knowledge and cognition of the entire moon can be improved, and a new history of the moon can be comprehensively written, which is the uniqueness of the samples on the far side of the moon.
Of course, I'm only illustrating part of it here, and there are certainly more directions waiting to be explored.
Therefore, it is completely normal for countries around the world to expect China to share samples from the far side of the moon. However, in response to the problem of lunar samples, what many people never expected was that the United States spoke again, which surprised many people, the United States clearly knew that there was a Wolf clause, and actually came to ask China to give Chang'e-6 samples, do you think this is too strange?
It is indeed peculiar, and the most important thing is that when the director of NASA carried out the Chang'e-6 mission on the mainland, he had already stated that the far side of the moon was permanently dark (a false statement), and he did not know what China was going to do, and the United States did not plan to go.
The result? The mainland has successfully completed sampling on the far side of the moon, and what do you want to do? Is this faster than turning a book?
Of course, this time the mainland also showed that there are difficulties in Sino-US cooperation, and the root cause is the United States itself, which has set the Wolf Clause, so if the United States wants samples on the far side of the moon, this problem needs to be solved, and if it is not solved, then let alone anything else.
After Chang'e-6, Chang'e-7 is also coming soon
That's right, after Chang'e-6, the mainland's Chang'e-7 is also coming soon, and the plan has been announced, the mainland's Chang'e-7 will be launched around 2026 to carry out environmental and resource exploration at the south pole of the moon, and the main task is to carry out leap exploration and strive to find water.
Moreover, Chang'e-7 is also the same as the mainland's Chang'e-6, will not carry out the mission alone, Chang'e-6 only 4 countries cooperate, Chang'e-7 has 7, will carry Egypt, Bahrain, Italy, Russia, Switzerland, Thailand, the International Association of Lunar Astronomical Observatories and other 7 countries and international organizations 6 payloads, jointly fly to the moon, carry out related scientific research work.
However, the most regrettable thing is the UAE's lunar rover, after the mainland and the UAE conducted research on the Chang'e-7 small lunar rover, which has to be carried out through the mission.
As a result, the United States came out and banned China-Arab Chang'e-7 cooperation because of U.S. export control restrictions, that is, the lunar rover does not contain technology.
Therefore, in the end, the cooperation between China and the Arab Chang'e-7 lunar rover will be gone.
Of course, the UAE has not completely lost its cooperation with the mainland, because the University of Sharjah in the United Arab Emirates has become a partner of the International Lunar Research Station (ILRS) project led by China and Russia.
Therefore, the cooperation of ILRS actually includes part of Chang'e-7, but it is not a lunar rover, and this is the general situation.
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