As of 65438+20221October 3, Chang 'e IV has sent back more than 3780Gb of data, and there is another amazing discovery, that is, the lunar soil data detected by Chang 'e IV and Yutu II are very different from the lunar soil brought by the American Apollo program! What is the secret of this? Is Apollo's landing on the moon really fake, as many people question?
In this paper, the researchers used the tire footprint information of Yutu-2 lunar rover on the lunar surface and combined with the ground mechanical model to estimate the mechanical properties of lunar soil. The results show that the lunar soil in this area is very similar to the dry sand and sandy loam on the earth, and has stronger pressure-bearing characteristics, which is very different from the lunar soil brought back by the Apollo program in the United States.
As of April 2022, the moving distance of Yutu-2 rover on the surface of the moon has exceeded 1 142 meters. In the process, Chang 'e IV also photographed its moving track. From many pictures in different positions, it can be found that Yutu No.2 is attached to a large piece of soil, which proves that the moon soil in this area has great cohesion.
Scientists have analyzed that it may be because there are more agglutinates in the lunar soil, and it is easier for wheels to stick together after being crushed.
No such features were found in the lunar soil brought back by the Apollo program. During the period from 196 1 to 1972, the United States successfully carried out six manned missions to the moon, bringing back 38 1.7 kilograms of lunar soil. During the honeymoon period of Sino-US relations, the United States presented China 1 gram of lunar soil.
It is this lunar soil that needs a magnifying glass to see clearly. It is regarded as a treasure in China, and 0.5g is used for research. The remaining 0.5g is stored in the Beijing Planetarium, becoming the "treasure of the town hall" of the museum. Scientists in China first studied the lunar soil from this 0.5g and found their different characteristics.
The difference between the moon and the soil is so great that there is no doubt about the authenticity of Chang 'e IV landing on the moon. Does this mean that Apollo manned landing on the moon is fake?
After all, many people have been skeptical about this for decades. For this question, Ouyang Ziyuan, chief scientist of China's lunar exploration project and academician of Chinese Academy of Sciences, has repeatedly explained that the Apollo landing on the moon in the United States is true and the lunar soil brought back is also true.
We are so sure, firstly, because Academician Ouyang Ziyuan, as a lunar expert, participated in the research of 0.5g lunar soil, studied its chemical composition, isotopes and minerals, and analyzed that this sandy lunar soil was formed about 3.2-4.2 billion years ago, mainly due to meteorite impact and cosmic radiation, which is completely different from the flowing water, weathered and oxidized soil of the earth, and the related research results produced 14 articles.
The second reason is that under the historical background of the hegemony between the United States and the Soviet Union in the 1960s and 1970s, the Soviet Union always stared at the flaws of the United States in order to defeat its opponents. If the United States really publicizes the success of landing on the moon without returning the lunar soil, the Soviet Union will definitely try its best to expose the lies, but the reality is that the Soviet Union has remained silent and has not released any evidence to prove that the United States faked the landing on the moon, which can also infer the authenticity of the American landing on the moon.
The fundamental reason for the huge difference between the two lunar soils is that Chang 'e IV and Apollo chose different landing zones. The landing site of Apollo moon landing program is basically in the quiet south of the moon, while the landing site of Chang 'e IV is in the Von Kamen crater on the back of the moon, so it is easy to understand that the lunar soil characteristics of the two different locations are different.
Just like the earth, the soil characteristics in the Northeast Plain and the Loess Plateau in China are definitely different, and the soil in China is definitely different from that in the United States, so it cannot be inferred that the lunar soil brought back by Apollo's landing on the moon is false.
Another proof is that the characteristics of lunar soil are different in different parts of the moon, and that is the Yutu lunar rover. On 20 13, 12, 15, the Chang' e-3 lander and the Yutu lunar rover successfully landed in the Hongwan area of the moon. During Yutu's lunar exploration, the pictures taken by Chang 'e III also showed that there were no signs of clay in its wheels, indicating that the lunar soil in the landing area was also very different from Chang 'e IV.
With more and more probes landing on the moon, we know more about it, especially after Chang 'e V landed on the moon in June, 5438+February, 2020, and successfully brought back 173 1 g lunar soil, China scientists finally have more research samples, so they don't have to study 0.5 g lunar soil like that.
The study of these lunar soils has also made scientists make an important discovery, that is, on the seemingly desolate moon, there is a treasure worth as much as 66 billion per ton.
These precious treasures are helium -3, which is recognized as the most ideal nuclear fusion material in the world. On June 5438+February 18, 2020, Wu, a researcher at Purple Mountain Observatory of China Academy of Sciences, said in an interview. Com believes that helium -3 is very rare on the earth, because the solar wind containing helium -3 is blocked by the earth's atmosphere, resulting in a total reserve of only about 65438+ million tons;
Because the moon is not blocked by the atmosphere, the reserve of helium -3 is very rich, about 6.5438+0 million tons, which can provide human energy security for 1 10,000 years.
Nuclear fusion, also known as "artificial sun", can provide endless clean energy for human beings, but the disadvantage is that nuclear fusion reaction can only be realized in extremely high temperature environment (about 1 100 million degrees Celsius). In May, 20021year, a simulation device in Hefei conducted a nuclear fusion experiment at1.500 million degrees Celsius. Finally, the device runs smoothly for 100 seconds, which is the highest record in the world at present, although the time is very short.
Although mankind has not fully mastered this technology, with the deepening of research and technological progress, nuclear fusion will have broad development prospects and will be the first choice of energy for mankind in the future.
It is the scarcity of helium -3 and the bright future of nuclear fusion technology that make these substances on the moon have high value.
According to the estimation of Russian scientific research institutions, the value of helium -3 per ton is about 654.38+000 billion US dollars, which is equivalent to 66 billion RMB at the exchange rate in April 2022. The moon's reserve of 6,543,800 tons is undoubtedly a huge wealth, waiting for mankind to explore.
As the closest celestial body in the universe to the earth, the moon has been attracting human attention for thousands of years, and it is also the first stop for human beings to go into space in the future. We should seek valuable resources here and expand a broader living space. The road to the stars and the sea of mankind will surely start from the moon.