Prior to this, scientists in China had studied the moon rocks, and the samples came from the Apollo manned moon landing program of NASA half a century ago. 1978, the United States took out a small piece of moon rock with the weight of 1g from the 382kg moon rock brought back to China.
Scientists in China cut 1 g moon rock in half, half for preservation and the other half for research. After a year of careful research, scientists obtained a series of important data and published 1 1 research papers.
So, what is the specific research conclusion? Can it be proved that Apollo manned landing on the moon is true?
1969, Apollo 1 1 landed on the moon, and two astronauts became the first humans to set foot on the moon. When they left the moon, two astronauts took away 22 kilograms of moon samples. Since then, five Apollo spacecraft have successfully landed on the moon. Each time, two astronauts landed on the surface of the moon and took away dozens of kilograms of moon samples.
But for a long time, some people have not stopped questioning NASA's manned landing on the moon. For example, the sky on the moon is black, but no stars appear; The tripod of Apollo lunar module did not leave an impact crater on the surface of the moon; The flag seems to be flying on the vacuum moon.
In fact, such doubts are untenable and can be refuted. Because the brightness of the moon surface is much higher than the stars in the sky, if you want to shoot dim stars, it will inevitably lead to overexposure of the scenery on the moon surface. The same is true of the photos sent back from the lunar surface by Chang 'e III, IV and V in China. The sky is too dark to see the stars.
There was no hard landing on the Apollo lunar module, and the descending rocket engine was working all the time, which could make the lunar module soft landing. Although the Apollo lunar module weighs 15 tons, it will not leave a deep pit on the surface of the moon. When the Chang 'e V lander is less than 5 meters away from the surface of the moon, it turns off the reverse rocket and falls freely, so the tripod will hit a hole on the surface of the moon.
This flag has horizontal support rods, so it can be unfolded. Coupled with the vacuum environment on the moon, once the flag shakes, it will take some time to stop, which makes the flag look like it was blown by the wind. Chang 'e V also took the national flag of China to the moon, displaying the five-star red flag on the moon for the first time.
In addition, China's Chang 'e II photographed the entire surface of the moon during its flight around the moon, including the landing site of Apollo's manned landing on the moon. The photos of the lunar surface sent back by Chang 'e II show that the traces left by Apollo manned landing on the moon are still on the lunar surface.
More importantly, the 1g moon rocks presented to China by the United States can directly prove the authenticity of Apollo's manned landing on the moon. Through the analysis of the sample, it is shown that this sample really comes from the moon, which is obviously different from the rocks on the earth. Presumably from the last manned mission to the moon, namely Apollo 17.
Some people say that it can be verified from the lunar soil brought back by Chang 'e V. If the composition of the lunar soil is very different from that of Apollo's lunar rocks, it can be proved that NASA manned the moon and faked it. But in fact, this does not explain the problem, because the landing point of Chang 'e V is very far from the position of Apollo spacecraft, and it is normal that the sample composition is very different, which scientists hope to see.
Because there are still less than 2 billion moon samples, and the lunar soil dug by Chang 'e V is exactly what scientists need urgently. Because of this, many scientists in the world expect China to share the precious lunar soil brought back by Chang 'e V.