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China's moon landing program is only one step in China's space exploration program, and it is a very important step. There are no obvious benefits in a short period of time, but for the future strategic layout, it is the key to China's rise.
500 years ago, a young Italian travelled to England, France, Italy and Portugal in an attempt to persuade the authorities to support his plan, but was rejected. In the end, it was the Queen of Spain who supported his plan, a young man named Columbus, whose plan was to sail into the unknown. Facts have proved that the great geographical discoveries have brought countless gold and silver treasures to Europe, and also brought opportunities for the rise of Europe.
And we in China have missed the "Age of Navigation", and now the "Space Age" is coming, and it is inevitable for human beings to migrate to other planets in the future, and we certainly can't miss it again! Chang'e-4 is the second step in our lunar landing plan, and we will also implement the lunar return plan and manned lunar landing program in the future, and it is expected that the manned lunar landing will be completed around 2030. The moon landing itself will not bring direct economic benefits, but it will be very tangible in terms of enhancing our prestige in the space field and boosting national confidence. Moreover, the moon, as an important springboard for human space exploration, is the first step out of space!
The moon also has a special resource - helium-3, the fusion process of helium-3 is not radioactive, it is a perfect nuclear fusion material, as long as 10 tons of helium-3 are transported from the moon to the earth every year, it can provide China's annual energy consumption, and the total amount of helium-3 on the moon is as high as 700,000 tons.
At present, mankind's controllable nuclear fusion technology is still under development, and it is expected that major progress will be made in 50 years, and the moon will sooner or later become a helium-3 mining base for mankind; It can be said that whoever masters space technology will control the future energy distribution, which is a very advanced strategic layout.
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He is mainly able to promote a milestone in China's aerospace technology.
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I thought that the landing of Chang'e-4 on the moon would not bring benefits to China, just human exploration. The economic benefits are nothing compared to the exploration of the universe by humans.
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That would bring a lot of benefits to China, and it would also promote the development of science in China.
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The Chang'e-4 moon landing can bring a lot of research to China and take China's research to a higher level.
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I think the most important thing is not to bring profits, but to love and sincerity in research.
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It will promote the development of China's science and technology and improve the visibility of China's science and technology.
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There is no benefit in this, it is a great discovery of science.
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Generally, they lose money, and the economic benefits are not worth mentioning compared to human exploration of the universe.
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Chang'e-4's outstanding contributions to mankind's exploration of the mysteries of the moon are as follows.
1. Carry out the far side of the moon.
Study on the morphology and mineral composition of the patrol area.
Use the Yutu-2 lunar rover.
The data of visible and near-infrared spectrometers, panoramic cameras and lunar radars are carried to analyze the spectrum, stone distribution and shallow structure of the landing area, and obtain scientific conclusions such as the morphology of the landing area, the composition of material minerals, and the characteristics of the landing area.
For the first time, the composition of deep lunar materials was directly obtained through in-situ exploration, revealing the complex impact history of the far side of the moon, especially the Aitken Basin in the South Pole, on the lunar soil.
The formation and evolution model of Antarctic land and patrol exploration sites provide important references for future Antarctic landing and roving exploration sites.
2. Carry out research on the superficial structure of the lunar surface in the patrol area on the far side of the moon.
According to the Chang'e-4 lander.
Lunar radar and camera data and other multi-source data were used to establish the stratigraphic profile and multi-stage sputter coverage relationship of the Chang'e-4 landing area. The cumulative thickness of the sputter in the landing area is about 70 m, and the surface is the Finsen impact crater sputter.
Within a depth of 40 m, three different stratigraphic units are present, including fine-grained lunar soil at 12 m, gravel layers from 12 m to 24 m, and sputter sediments and weathering products from 24 m to 40 m. These results unveil the mystery of the underground structure on the far side of the Moon for the first time, greatly improve our understanding of the history of lunar impact and volcanic activity, and bring new insights to the study of the geological evolution of the far side of the Moon.
3. Carry out research on neutrons and radiation doses on the lunar surface and neutral atoms.
Using the detection data of the Chang'e-4 lander, the lunar surface neutron and radiation dose detector and the neutral atom detector were used to obtain the lunar surface high-energy particle radiation environment spectrum, the lunar surface neutral atomic energy spectrum structure and albedo, and the lunar surface neutron radiation dose rate ratio of the space station.
The inner part is 1 to 2 times higher, and the radiation dose is equivalent.
It is about 1 times higher.
It was confirmed that primary galactic cosmic rays hit the surface of the Moon, producing reflective protons. These results are the development of the solar wind.
It provides important support for the study of microscopic interaction with the lunar surface, promotes the understanding of the risk of lunar surface radiation, and provides future lunar astronauts.
It provides an important reference for the estimation of radiation hazards and the design of radiation protection on the lunar surface.
4. Carry out month-based low-frequency radio astronomical observation and research.
Using the low-frequency radio spectrometer of the Chang'e-4 lander platform, the first low-frequency radio astronomical observation was successfully carried out on the far side of the moon, and a large number of effective observation data were obtained. It is of great scientific significance to obtain the background spectrum of the electromagnetic environment and the time-varying waveform data of the low-frequency radio component of the low-frequency radio component in the landing area below 40MHz frequency, which is of great scientific significance for the study of the low-frequency radio characteristics of the sun and the low-frequency radio environment of the lunar surface.
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The Chang'e-4 lander and rover carried a number of scientific instruments, successfully landed near the Moon's South Pole-Aitken Basin-von Kármán impact crater, and carried out a number of scientific and technological explorations on the far side of the Moon. According to the official information and the research of scientists, the lunar materials detected by Chang'e-4 mainly include the following categories:
1.Lunar soil: The Chang'e-4 lander is equipped with an instrument called the Lunar Surface Rock Analyzer, which analyzes the rock and mineral composition of lunar soil.
According to the results of Chang'e-4 research, the main components of lunar soil are minerals such as afeldspar, plagioclase, olivine and pyroxene.
2.Strata with different material compositions: Chang'e-4's research revealed that there are strata of different material compositions beneath the moon's south pole-Aitken basin, a finding that will help scientists better understand the moon's evolutionary history.
3.Neutrinos: Chang'e-4 also carries a neutrino detector that can monitor neutrinos from the sun and cosmic rays. This experiment can provide important information and data for the study of cosmic rays, cosmology, and particle physics.
4.Others: Chang'e-4 also detected information about the Moon's magnetic field, dust environment, topography and landforms, which will help to better understand the evolution of the Moon and the Moon's influence on the Earth.
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Become the 12th fan.
Yutu's landing zone, the Moon's South Pole-Aitken Basin, is one of the largest known impact craters in the solar system and is also recognized as the oldest and deepest impact basin on the Moon. The information obtained here on the deep material of the Moon is helpful for studying the composition of the lunar crust and mantle, the geological characteristics of the Moon, the origin and evolution of the Moon, and the interpretation of magnetic anomalies on the Moon.
The team led by Li Chunlai, a researcher at the National Astronomical Observatories of the Chinese Academy of Sciences, used the detection data of the infrared imaging spectrometer (VNIS) carried by the Yutu-2 to prove that there are olivine and low-calcium pyroxene materials in the lunar soil in the Chang'e-4 landing area.
Similar to Earth, the Moon is made up of a core, a mantle, and a crust. Scientists have inferred that with the evolution of lunar magma, the lighter plagioclase components floated to form the lunar crust, while the heavier minerals such as olivine and pyroxene sank to form the lunar mantle. However, this deity has not yet been strongly confirmed by the inference of the composition of the moon mantle.
However, the discovery of Yutu-2 provides direct evidence for answering the question of the material composition of the lunar mantle, and provides support for improving the model of lunar formation and evolution.
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As of Chang'e-3, more than 20 probes have landed on the front side of the moon.
But the number on the back is: zero.
Why is the far side of the moon so difficult to reach?
1. The Moon will always only face the Earth head-on.
It may be hard for you to imagine that since the age of the dinosaurs, although there have been clouds and sunshine of the moon every day, we and the dinosaurs have seen the same side of the moon - on the front, the moon has never 'turned' for the earth.
2. Why is the moon "only positive"?
The Earth has a strong tidal lock to the Moon, and the Moon's orbit around the Earth is exactly equivalent to the rotation period, resulting in only the front side of the Moon being visible from the Earth.
3. Why is it difficult to reach the far side of the Moon?
Because of years of exploration and the maturity of telescope technology, every crater or other surface change on the front side of the moon can be understood not only by scientists, but also by many astronomy enthusiasts with a good telescope.
But the situation on the back side is completely different, first of all, the observed data is much smaller than the front side, and the picture can only be obtained from a space telescope. The second is that landing on the far side of the moon will definitely encounter the problem of 'no signal', and the probe will block the signal by landing on the back side of the moon, and we have solved this problem by laying the 'Queqiao' relay satellite in advance.
4. What is the international evaluation of landing on the far side of the moon?
What most netizens don't know is that the first official announcement of Chang'e-4's landing was actually on Twitter, which immediately caused a sensation abroad. To put it simply, it can be evaluated like this: in the cause of exploring the moon, China is once again standing on the threshold of making history!
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At 10:26 a.m. on January 3, 2019, the Chang'e-4 lunar probe successfully made a soft landing in the Aiken Ring Basin at the South Pole of the far side of the Moon. This is the first successful landing on the far side of the moon in human history, so what secrets are hidden on the far side of the moon, and can Chang'e-4 completely reveal the truth about the dark side of the moon?
On December 8, 2018, China's Chang'e-4 satellite was successfully launched aboard the Long March-3B carrier rocket at the Xichang Satellite Launch Center.
At 16:45 on December 12, Chang'e-4 arrived near the moon and was successfully completed"Space brakes"At 8:55 on December 30, the Chang'e-4 probe implemented orbit change control in the orbit around the moon and successfully entered the lunar side landing preparation orbit.
This is China's contribution to the world's space flight, and it is also the first time that a human vehicle has reached the far side of the moon. Previously, the scientific community was full of curious speculations about the far side of the moon, such as alien bases, mysterious flying saucers, and even American World War II planes, etc., and perhaps Chang'e-4 will unveil these speculations one by one.
In July 1969, the U.S. Apollo 11 successfully landed on the moon, but the moon ** released by NASA was full of doubts. So much so that some Soviet scientists questioned their American counterparts, did the Americans not go to the moon at all, but just filmed the moon landing in the desert to deceive the whole world**? Regardless of whether the United States lands on the moon or not, in short, in the "Transformers" movie, the Americans have shaped the far side of the moon into an alien base that defies the sky.
Since 2003, in the past 12 years, China's aerospace industry has implemented its own lunar exploration program step by step. Eleven lunar probes, including Chang'e-1, Chang'e-2 and Chang'e-3, have flown to the moon, and we have obtained a large number of exploration data on the topography, material composition, and surface environment on the far side of the moon. It turned out that the so-called far side of the moon, which is always facing away from the earth, has no signs of human activity at all, there is no alien base, and there are no human World War II planes, it is just a wild world that has not been destroyed for 4 billion years.
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Because you can't see it, and you haven't been there, it will cause this place to be so mysterious, don't all human beings have a heart to explore desires? Columbus's circumnavigation of the world, as well as the Antarctic expedition, is now time for outer space.
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Because of the back to the earth, back to the sun, the living environment must be unimaginably poor, scientists for the far side of the moon seems to be difficult to overcome, now there are conditions to strengthen the investigation, but there are too many alien planets, not to mention the harsh conditions of the far side of the moon, I hope that our Chinese scientific researchers can break through the difficulties, the mystery of outer space can be revealed as soon as possible!
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It's a bit of a trick, whether it's the front of the moon or the back side, it's all the same.
When the United States first landed on the moon in 1969, it was already true that the moon is a waterless, oxygen-free, lifeless celestial body.
In fact, human beings have always been fascinated by the unknown field and unknown science.
For example: deep oceans, Europa, Mars. Europa has a thick layer of dry ice, and the ice is full of water.
Water is the source of life, and scientists speculate that Europa, there may be life. Isn't this more obsessive than the far side of the moon?
In fact, human exploration of the unknown world begins with curiosity.
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