Was the U.S. moon landing faked? What is the truth?

One small step for man, one giant leap for mankind. ?On July 20, 1969, the moment American astronaut Armstrong set foot on the moon, he said this famous saying that was used as composition material by many classmates.

However, the authenticity of this great feat of the United States' moon landing has been questioned by all parties. Some people have suggested that the United States has never landed on the moon and that this is all a lie. As early as 1974, American writer Bill Kane wrote the book "We Never Go to the Moon," in which he proposed the idea of ??a "moon landing hoax" and became a sensation. This was also the beginning of people questioning whether the United States had ever landed on the moon.

Later, in 1977, a film called "Capricorn One" told the story of how scientists deceived everyone into successfully landing on Mars, thereby satirizing the fraud of the moon landing plan.

In 2016, the movie "Avalanche" even expressed its skepticism about the moon landing through its plot. This film was even translated as "I Sent Armstrong to the Moon" in Taiwan, China.

According to a survey, in 1999, only 6% of people did not believe that humans landed on the moon. But by 2013, this proportion climbed to 37%. The emergence of various remarks and so-called "evidence" made people increasingly doubtful about the moon landing technology 51 years ago. The "evidence" cited by the skeptical side has always been as follows:

1. The flying national flag

Among all the doubtful points, the national flag is the most discussed of. The point that people question is that the moon has no air, and naturally there will be no wind caused by the flow of air. But in the video we can clearly see the national flag fluttering in the wind.

The explanation given by NASA for this point of view is: on the one hand, because the moon has a small gravity, the flag will not droop too fast after it is unfolded. As the astronauts shake when they place the flag, the flag will also vibrate. . In addition, the moon has no air resistance, so small vibrations will be amplified and look like they are "flying". NASA said that because it knew in advance that there was no air on the moon, it prepared a national flag with wires in order to prevent the flag from hanging down.

2. Multiple light sources

Several of the photos taken show that the astronauts have shadows in several different directions, but it stands to reason that there is only one light source on the moon, the sun. These photos The light looks more like studio lighting.

For this point, NASA’s response is: In addition to direct sunlight, there is also reflection from the lunar regolith, which is also the reason why the moon glows at night.

3. Not seeing the vast starry sky

The moon has no atmosphere, so you can directly see the deep black universe. Logically speaking, you should be able to see many stars in the photos taken, but the background in all the photos released by the US is pitch black.

For this point, NASA explained: It is caused by too strong reflected light from the sun. It’s the same reason that we can’t see stars during the day on Earth. It can also be seen from the photos taken by the Chang'e-3 launched later by our country that indeed no stars can be seen.

It can be seen from NASA’s response to the doubters that the fact that the United States landed on the moon is beyond doubt. However, it is unknown how much of the results of the moon landing program the United States has disclosed to the world and how much it has retained. Then someone else raised a question: The United States' current national strength and technological level are far superior to those of 50 years ago. Why has it never landed on the moon again?

First, the "Apollo Project" was the fruit of the struggle for hegemony between the United States and the Soviet Union. The success of the plan was not just a matter of the United States alone, but also the product of the mutual competition and confrontation between the United States and the Soviet Union. In peacetime, when external threats are lost, the motivation for competition is also lost.

Second, the entire Apollo program cost a huge amount, totaling approximately US$25.5 billion. This is in monetary terms 50 years ago. Hans Mark, former commander-in-chief of NASA's Ames Research Center, once commented on the Apollo program: President Kennedy's wish came true, but the price was too high. It can be said that the 'Apollo Project' is a legacy that is difficult to inherit. ?

Third, the lunar environment is barren and there is little value in continuing exploration. In the boundless space, the pace of human exploration has never stopped. Instead of questioning the facts that have made great contributions to mankind. It is better to look up at the stars and convey a heartfelt awe to the vast universe.