Why didn't the United States publish photos of the back of the moon?

Actually, the back of the moon is not mysterious. As early as 1960, the former Soviet Union published photos of the back of the moon. As can be seen from the photos, the back of the moon is pitted, which is no different from other parts of the moon.

Later, after 1965, the Soviet Union took 25 photos of the back of the moon and released them in 1967.

Secondly, 1968, the United States conducted a mission around the moon. At that time, three astronauts went into space in the apollo 8. In this mission, all three astronauts saw the back of the moon with their own eyes.

And then Apollo 10, Apollo 1 1, until Apollo 17, the astronauts who carried out the mission saw the back of the moon with their own eyes.

Then the reason why people are interested in the back of the moon is nothing more than conspiracy theories. Some people say there are aliens on the back of the moon, and there are even alien bases.

However, human observation data tells us that there is nothing on the moon except large and small craters, and China's Chang 'e IV launched on February 8, 65438 is also preparing to land on a crater on the back of the moon.

Finally, because of tidal locking, the moon can't rotate, so only one side of the moon can always be aimed at us, which leads to the moon shielding the transmission of electromagnetic signals, resulting in the ground losing contact with the aircraft as long as it flies to the back of the moon.

Therefore, China launched a relay satellite a few years ago, which can ensure the transmission of electromagnetic waves and is no longer affected by the moon. ...

The following will show the photos of the back of the moon released by the United States a long time ago to set the record straight. Therefore, this question is fundamentally a wrong question, and I call it the "rumor question". See a dozen such problems.

If you search the far end of the moon on a search engine, you can find many pictures.

For example, the following one:

It's a very clear picture of the back of the moon taken by Apollo 16. Compared with the previous one, there is not much difference.

This photo from NASA was taken earlier at 1959:

This is a photo taken by the Lunar 3 probe.

The reason why the back of the moon is mystified by many people is mainly because it has always been only half-facing the earth. But this is not the result of supernatural forces. Today's science can fully explain this phenomenon, which is called "tidal locking".

The rocks on the surface of the moon will be deformed by the gravity of the earth, thus heating up and dissipating heat and rotating kinetic energy. At the same time, deformation itself will couple with gravity and consume angular momentum. Until the rotation speed is the same as the revolution speed.

Back to the "rumor problem", I even think it is a question of covering up the essence of rumors with questions.

Not only the United States, it seems that all countries that have successfully explored the moon have not released high-profile photos of the back of the moon, which makes many people think that there seems to be a big secret hidden on the back of the moon, and some even speculate that there are alien bases and crashed planes behind the moon.

According to the respondents' knowledge, because of the tidal locking, the gravity gradient of the moon always faces the earth with the same face, which leads to the fact that the moon photographed by various observatories and astronomical telescopes always faces the same face. Plus astronauts and lunar probes will land on the front, so the communication signal will be better, so there is no particularly big news, and basically no one will care about the back of the moon.

In fact, as early as 20 14, NASA released the latest photos of the back of the moon taken by the Lunar Reconnaissance Orbiter (LRO), which also confirmed that there were no signs of aliens except the dense craters on the back.

The above picture is a bright green concept map of Zhang Mingliang, which shows the topographical features of the moon's poles, and its back is covered with large craters and bulges.

Shooting the back of the moon is more difficult than shooting the front of the moon, and the difficulty coefficient of landing on the back of the moon is also greater.

It is not that the United States has not released photos of the back of the moon. In fact, not only the United States, China and Russia have released photos of the back of the moon. They just turn a blind eye to the subject, take it for granted by feeling, or want to provoke some conspiracy theories.

Because the moon is tidal locking by the earth, no one can see the back of the moon for thousands of years, so the back of the moon is mysterious and full of reverie. 1959 the former Soviet moon 3 spacecraft reached the lunar orbit for the first time and took the first photo of the back of the moon. Humans are lucky enough to see the other side of our neighbors. It was in 1968 that humans directly saw the back of the moon with the naked eye. Astronaut William Anders described: The back of the moon looks like a sand pile. I played in it for a while when I was a child. It's all turned up, without boundaries, just some collision marks and potholes.

China is going to launch Chang 'e IV to land on the back of the moon at the end of this year, becoming the first aircraft to land on the back of the moon in human history. If successful, man will observe the moon from the land behind it for the first time.

The back of the moon is mainly undulating impact craters, and the flat moon sea composed of black basalt with low reflectivity is much less than the front we see, so if someone can make the back of the moon face the earth, the moonlight will be brighter at night.

There are many photos of the back of the moon on the internet, nothing special. Some people use conspiracy theories to spread specious statements, often on the back of the moon. For example, planes during World War II were found on the back of the moon, Nazis built bases on the back of the moon, and alien spacecraft and bases were found on the back of the moon. The most famous conspiracy theory is that the United States made a fake landing on the moon. 1999 Gallup poll showed that 6% of Americans did not believe that man had ever landed on the moon, and then the American Discovery Channel program mythbusters showed that 20% of Americans did not believe that the United States had ever landed on the moon. By 20 13, it is reported that 37% of Americans don't believe in landing on the moon. It seems that the IQ of the American people is getting lower and lower, but these are not official poll results. I hope Gallup will come again sometime.

If you are a person with basic scientific literacy, you will definitely think of whether the United States has published photos of the back of the moon before, and then understand why only one side of the moon faces the earth for many years. What's different about the back of the moon? But if you are a fan of theological metaphysics, you will definitely think of this question: this must be an American conspiracy, and the United States must have discovered aliens. There must be hidden secrets on the back of the moon, and the back and inside of the moon must be the base of aliens. This reminds me of Occam's razor principle: simplify things, grasp the key points and essence, let nature take its course, and don't deliberately change anything.

Why is there always only one moon facing the earth? The surface of the moon facing the earth bulges a little more, which causes the moment generated during the cancellation of the gravitational line of action between the moon and the earth. This torque gradually slows down the rotation speed of the moon until it reaches tidal locking Earth. The rotation period of the moon is the same as that of period of revolution around the earth, which is 27.32 days, so the moon always faces the earth alone.

In fact, the photos on the back of the moon have long been made public. The former Soviet Union, the United States and China have all published photos of the back of the moon. 1959 The "Moon 3" satellite launched by the Soviet Union photographed the back of the moon for the first time. The picture above shows the back of the moon sent back to earth by satellite. Lunar 3 took nearly 30 photos on the back of the moon in more than 30 minutes. 17 negatives were automatically developed on the satellite, then converted into radio signals by TV scanning, and then transmitted to the earth through wireless communication equipment.

Apollo 8, USA, let people see the back of the moon for the first time. According to the description of the astronauts at that time, there is not much difference between the back and the front of the moon, but there are a little more craters, which looks a bit like a beach as a whole. Moreover, NASA has released photos of the back of the moon, which can be found online, and only conspiracy theorists will not believe it. In addition, China's "Chang 'e I" also released China's first image of the back of the moon on June 26th, 2007.

Judging from the images of the back of the moon published by many countries, there is nothing strange about the back of the moon. The prominent feature of the front of the moon is that there are many low-lying plains, and the craters on the back of the moon are relatively dense.

The first country to make a detailed observation on the back of the moon was the Soviet Union, not the United States. Humans know that the back of the moon has little to do with the United States. But the United States also released photos of the back of the moon.

1On June 7th, 959, the space probe Lunar 3 of the former Soviet Union took the first picture of the back of the moon. It was not until 1968 that American astronauts became the first person to directly observe the back of the moon in its orbit. In the era of space competition between the United States and the Soviet Union, each has its own first calculation method. This includes the back of the moon. And no one will hide their achievements involving the first place.

Illustration: the back of the moon. Apollo 18 shooting.

Helping people understand the back of the moon is mainly due to the Soviet Union. I'm afraid the United States can only attract attention by landing on the moon, because they have already lost in the lunar exploration.

Illustration: On the left is 1959, the first photo of the back of the moon sent back to Earth by Lunar III, with touching resolution. But it is still the first picture of the back of the moon. The picture on the right is a photograph of the back of the moon taken by the Lunar Reconnaissance Orbiter (LRO) launched by the United States in June 2009.

In the first photo sent back by Lunar 3, Soviet scientists analyzed 18 main topographic features on the back of the moon, which covered one third of the parts that could not be directly observed from the earth. After in-depth analysis of the remaining images, the Soviet Academy of Sciences published the first map of the back of the moon in the history of human astronomy, which contained 500 distinguishable landscapes. A year later, the former Soviet Union made the first lunar instrument with the characteristics of the back of the moon.

Illustration:1961165438+1October 27th, the first lunar instrument in human history, including the important terrain on the back of the moon.

Since then, the Soviet Union has continued to make a fuss about the exploration of the back of the moon and got more and more clear photos. By 1967, when Moscow published the second part of the map of the back of the moon, the catalogue already contained 4000 newly discovered topography of the back of the moon. In the same year, the Soviet Union released the first complete map of the moon and the revised complete lunar instrument, which contained almost the complete surface of the moon, accounting for 95%.

Because the exploration of the back of the moon is mainly the aerospace achievement of the Soviet Union, Soviet scientists have obtained the naming right to the important terrain on the back of the moon, and some of the terms have even caused some controversy in the astronomical community, but the International Astronomical Union has finally retained the naming of most Soviet scientists to show respect and recognition.

Illustration: There is a huge crater on the back of the moon, named jules verne crater, to commemorate this famous science fiction writer, who once wrote a science fiction novel called From the Earth to the Moon.

Illustration: In order to publicize the achievements of Chang 'e III, the Soviet Union also issued commemorative stamps.

What's the difference between the back and the front of the moon?

There are more and bigger craters on the back of the moon, which is the most remarkable difference between it and the front. The front of the moon is much flatter. The difference between craters is easy to understand. After all, when the moon is locked by the earth, it is difficult for meteorites to hit this part of the moon that we can see. In other words, the moon should have helped the earth block many threats from giant asteroids. There is a huge crater on the back of the moon, which can rank second in the solar system. In addition, there will be the highest concentration of helium -3 in the flat area (Moon Sea) on the back of the moon. This isotope is very rare on earth, but it is a good fuel in nuclear fusion reactors. So in the future, humans may go to the moon to mine helium -3. In fact, there is a sci-fi movie with this as the theme, which describes a tragic clone who keeps mining helium -3 on the moon and fantasizes that after ten years of work, he can return to earth to reunite with his wife and daughter.

Illustration: A clone who will never go home.

Why is the back of the moon also the target of rumors?

This is because, at present, the time of the moon's rotation is exactly the same as that of a circle around the earth. This phenomenon is called tidal locking or synchronous rotation, which causes it to always align the earth with a plane. In the long run, the earth's rotation will eventually coincide with the earth's revolution around the sun. At that time, one day of the earth was equal to one year, but it also meant that only one side of the earth would be illuminated by the sun and the other side would fall into darkness. But this process is very, very slow, so slow that the sun will no longer exist and has not yet been realized, so we don't need to worry about this problem now.

Illustration: Pay attention to the arrow of the moon. If we cover the earth, we can better understand the rotation and revolution of the moon.

Historically, many astronomers were curious about the back of the moon and wanted to have a glimpse of its mystery. But before the invention of rockets and space probes, this was wishful thinking. Therefore, the back of the moon has become the theme of science fiction writers, including the idea that there is an alien base on the back of the moon, which has been circulating for a long time. After World War II, there were even more absurd rumors. It is said that Hitler faked his own death. He secretly led some Nazis to the back of the moon, set up a military base and planned to counterattack the earth from the moon. This brain hole was also made into a movie "Iron Sky".

Illustration: In the movie, the Nazi base on the back of the moon.

Because even if the United States publishes it, some people will believe the rumor that the United States is afraid to publish photos of the back of the moon because it has discovered the shape of the back of the moon.

The simplest thing is that there are countless photos of the moon on NASA's official website, including the so-called far side of the moon. The picture below is a screenshot of NASA's website, and you can see all kinds of photos of the moon, all of which were taken by various satellites orbiting the moon in the past.

Just under the entry of "The Far Side of the Moon" in Wikipedia, a photo was placed in the most conspicuous place. The introduction of the photo is "the far side of the moon was shot by Apollo 16", which translates into Chinese as "the photo on the back of the moon was shot by Apollo 16".

And if you are still not satisfied, there is also the website Google Moon, which will contain photos of various parts of the moon, including photos of the back of the moon.

Even if you don't know anything, you can't read English websites, and you don't know that the United States has released photos of the back of the moon, just think about it. The lunar probe was launched not only by the United States, but also by its old enemies, the Soviet Union, China, some European countries and even India. So what's the point of the United States not publishing pictures of the back of the moon? This is like saying that aliens appear on the busiest road in the world in full view, and some people take photos and hide them, for fear that others will know that there are aliens on this road-isn't this a cover-up?

The picture below shows the first photograph of the back of the moon taken by the Soviet Union in 1959. This picture is also regarded as one of the victories of the Soviet Union in the space race, because they first detected the back of the moon-when something new was discovered in space, the United States and the Soviet Union would rush to announce it for fear of falling behind each other. Where else can you hide?

So let's understand.

But why do some people insist on the conspiracy theory that there is an alien base on the back of the moon, so the United States dare not publish photos on the back of the moon?

This is a long-standing rumor, and this rumor is very, very retarded. Today, with so much information, this rumor is not convincing at all, because a casual search on the Internet will reveal the truth. The Internet is full of photos of the back of the moon. But some people are willing to choose blindness with their eyes open, because it is in line with their curiosity.

As early as 1950s, the United States and the former Soviet Union launched a large number of aircrafts to explore the moon in all directions, and basically found out the geomorphological features of the moon. 1959101On October 7th, the former Soviet spacecraft Luna-3 sent back the first picture of the back of the moon. Later, American and Soviet probes took a lot of pictures of the moon and made them public. 196 1 year 1 1 month, the Soviet union made the world's first lunar instrument based on the massive photos sent back by the lunar probe. This lunar instrument records the 360-degree terrain, land and sea distribution and mountains and lakes of the moon. Although there is no water on the moon, these terms have been used to this day, which fully reflects the world's respect for the spirit of space exploration in the former Soviet Union.

The United States was slightly inferior to the former Soviet Union in early space exploration, especially in lunar exploration. However, the manned moon landing later overshadowed the Soviet Union, so the Soviet Union canceled the moon landing plan and the space war between the two superpowers ended.

The smoke cleared over there, but it worried a bunch of people who always wanted to make some anecdotes. They have been dreaming about the moon. Chang 'e and WU GANG are gone, so are the Jade Rabbit and the osmanthus tree. There should be something, right So I want to have a new moon from time to time. It is constantly circulating that there are aliens, pyramids, space domes, World War II planes, warships, and the moon is hollow, which is a huge warship for aliens to monitor human beings.

The so-called United States has not released photos of the back of the moon, probably because the United States is hiding something and secretly engaged in some moths with aliens. In fact, NASA releases some space information every three to five days, and has never concealed the observation results on the back of the moon, not only releasing photos, but also releasing videos.

On 20 15, NASA released a set of photos of the moon. These photos were taken by the Deep Space Climate Observatory (DSCOVR) with the Earth Multicolor Imaging Camera (EPIC) at a distance of 0/0.6 million kilometers from the moon. At that time, the moon was in the Pacific Ocean near the outside of North America, and the detector rarely photographed the "dark side" of the moon illuminated by sunlight.

Not long ago, China also launched a probe named Queqiao to establish a communication relay for the soft landing of Chang 'e IV on the back of the moon. If there are moths on the moon, wouldn't China's mission on the back of the moon be mysterious? It is necessary to ask these people who are immersed in mysterious excitement all day to ask the Chinese Academy of Sciences, and I believe they will give these people a satisfactory answer.

With regard to the exploration of the moon, six countries and regions sent dozens and hundreds of detectors, which not only scanned every corner of the moon, but also detected the rock formations 300 meters deep on the surface of the moon by high-tech means, and never found any special phenomenon.

This recent celestial body has been detected quite clearly by human beings, but some people continue to explode such inferior rumors and deceive the public again and again, which still inspires many people who eat melons to follow suit. It's really a kind of sadness. This is the root of people's blind credulity, and of course it is also related to the overall quality and the original world outlook. There is such a mysterious idea. People who have always been skeptical about science, when someone shouts, the herd effect appears. A sheep is jumping in front, and a flock of sheep are following. As for where to go, is it a cliff, who cares?

People with this kind of complex are advised to trust the formal information of the scientific community, read more and analyze more, and go in the right direction. Don't blindly follow the trend and rush to the sheep of the cliff.

Please respect the author's copyright when spreading original works in time and space. Welcome rational comments, thank you for your attention and support)

This question is a variant of conspiracy theory and has no influence.

Why didn't the United States announce it? Does the United States dare not? Still afraid of offending aliens?

Voyager 1 flew in the solar system for more than 40 years, and reached the edge of the solar system, but found no trace of aliens, even lower-level alien species.

The moon is at the door of the earth. If there are aliens, can they hide?

As early as before the last incident, the Soviet Union launched a lunar probe in the late 1950s, and the images on the back of the moon were similar to those on the front, with no difference.

So far, man has really not landed on the back of the moon. The United States has the technology, but it has no money to do this.

It is troublesome to keep in touch with the earth when landing on the back of the moon. Due to the obstruction of the moon, electromagnetic waves are difficult to transmit to the earth, which requires the lunar satellite transponder to transmit the information on the back of the moon to the satellite first, and then to the earth through the satellite, which will consume more financial resources and manpower.

The United States will land next month to show off its strength. There is no need to land on your back thanklessly. How easy it is to land on the front!

The reason why the moon always faces the earth is that the period of revolution of the moon is equal to the rotation period.

Now many countries have launched lunar probes, which can not only fly around the moon, but also land on the surface of the moon.

NASA released a panoramic view of the lunar surface, as shown in the following figure.

It's nothing. There are no alien bases or pyramids.

All the guesses come from the unknown, and now they have landed, and the answer is self-evident.

The legend of moon aliens is just a low-level means for unscrupulous media to attract people's attention, which is not worth mentioning at all.

"Why didn't the United States publish photos of the back of the moon?" This is a popular conspiracy decades ago, old terrier.

In fact, there are many clear pictures of the back of the moon in Google Pictures, including vision china Gallery. Although it is more difficult to photograph the back of the moon than the surface of the moon, scientists have done it as early as the Soviet era. 1959, the Russian mission to the moon sent the first picture of the far end of the moon back to Earth, so that humans could witness the back of the moon. The United States and China have successively completed.

As for why some people say not to publish, there is actually a misunderstanding: because there are not many.

According to the pictures and data of the detector, the back and front of the moon are almost the same, but there are more craters. There are many huge moon seas on the front of the moon, and dense craters on the other side. Only a small part, about 2.5% is covered by the ocean, while on the front, it is 365,438+0.2%. (The sea here refers to the relatively low-lying plain on the surface of the moon) The most likely explanation for this difference is that the heat production is concentrated in the positive half, such as the gamma-ray spectral geochemical map confirmed by the lunar probe.

In 20 18, the Chang' e-4 lunar probe will reach the back of the moon. Taking advantage of the fact that the back of the moon can shield the earth's radio interference, Chang 'e-4 will carry out the exploration of the lunar surface topography, geological structure, mineral composition and chemical composition, the internal structure of the moon, the space between the earth and the moon and the lunar surface environment, and build a basic supporting lunar exploration engineering system.

By launching the data relay satellite between the moon and the earth, Chang 'e IV will realize the measurement and control and digital relay communication between the earth and the moon for the first time in the world.

According to a report published on the website of Newsweek magazine entitled "China plans to become the first country in the world to land on the far side of the moon in 20 18", the main task of this project in China is to land on the far side of the moon. But before the spacecraft takes off, China needs to send a communication satellite to the far end of the moon and send the signal back to Earth, which may be done as early as June.

By then, people will know that the back of the moon is not so mysterious.