Chang'e-6 brought back soil on the far side of the moon, and China openly welcomes scientists from all over the world, except for the United States. The situation is special, not that China is unwilling to share, but that the United States itself "refuses to let it".
Not long ago, Chang'e-6 successfully completed its mission, bringing back soil from the far side of the moon under the attention of the whole world. This is the first time in human history that a "courier" has been received from the far side of the moon, and unlike the previous ten samples of the moon by humans, it will be more difficult to "dig" from the far side of the moon than from the front sample.
First of all, from a technical point of view, it is impossible to communicate directly with the Earth on the far side of the Moon, and in order to overcome this obstacle, it is necessary to launch a relay satellite to sample and land on the far side of the Moon. This is a major test of China's aerospace deep space communication technology, fortunately, China's astronauts have fulfilled their mission, through the unremitting efforts of generation after generation, in the aerospace science and technology continue to achieve breakthroughs, promote the progress of lunar exploration technology, and all these efforts have finally been reflected in Chang'e-6, from the far side of the moon to bring back the soil, is only a small step in the field of space, but this small step alone is enough to make the United States that "the far side of the moon is black" become an international joke.
Second, Chang'e-6 will bring back soil from the far side of the moon, which will be much more difficult than we think. In addition to the many technical difficulties, the terrain and landforms on the far side of the Moon are also much more complex than those on the front side. But as the saying goes, wealth and wealth are sought in danger, and China's aerospace industry has overcome all difficulties and brought back soil from the far side of the moon has also made scientists around the world have higher expectations. Because according to Hu Hao, the chief designer of the Chang'e-6 mission, during this sampling process, I felt that the lunar soil on the far side of the moon was not the same as the lunar soil on the front, and the lunar soil on the front was relatively dry and loose, just like a pile of sand. And the lunar soil on the back is a bit "sticky", how to understand this stickiness? It seems to me that the presence of water may not be ruled out. Of course, this will have to be further researched to be conclusive, but before that, you have to have soil on the far side of the moon.
Therefore, the United States is very anxious about this issue. According to a recent report on the website of the American "Politico", China has cooperated with France, Italy, Pakistan and the European Space Agency on a mission to collect samples from the far side of the moon, but has not sought to involve NASA. In addition, the Chinese side did not invite the United States to participate in the study of the soil on the far side of the moon. At first glance, the United States is full of resentment, and those who do not know it think that the Chinese are petty. However, the reality is that China welcomes scientists from all over the world to conduct joint research and share results, but a law restricts Sino-US cooperation in the field of aviation. The law, known as the "Wolf Clause," restricts any China-related space technology cooperation, including satellites, manned spaceflight, and deep space exploration, and was enacted by the United States to prohibit all support for China's leading aviation sector.
However, as it stands, China has become the first country to collect samples from the far side of the moon, which is enough to show that we have become a "leader" in lunar exploration. Thirty years in Hedong and 30 years in Hexi, don't bully the young and poor, the positions of China and the United States have been reversed, and now it is the turn of the United States to seek China's cooperation. There is no doubt that this "Wolf Clause" has become a boomerang that has been smashed on the United States, and China has always been open to carrying out space exchanges and cooperation. Based on this, the United States wants to dump the black pot this time, China will not carry it, it's not that we don't want to share, it's the United States itself that "won't let it", China can strictly abide by the "Wolf Clause", so I also hope that the United States can have a little backbone and talk about it!