You can see the stars on the earth, but why can’t you see them in the photos of the moon landing?

As the closest celestial body to the earth, the moon has always had a special status in human hearts. People from all regions, periods and civilizations have created many beautiful and moving works with the moon as the background. myths and legends.

In modern times, the continuously developing power of science and technology has brought humans closer and closer to the moon. 51 years ago, Apollo 11 carried three astronauts to the moon. At this moment, mankind’s beautiful hope for thousands of years became a reality.

In the following years, NASA organized multiple manned lunar landings, and more and more astronauts left their footprints on the moon.

However, what is surprising is that since the Apollo 17 moon landing, NASA has not conducted any lunar landing operations.

This "abnormal" situation has caused many people to doubt the authenticity of the Apollo program. In other words, humans have not set foot on the moon at all. The so-called moon landing photos and live broadcasts of the moon landing were actually taken in a recording studio. Filming completed.

Of course, the reason for such doubts is not only because NASA has not landed on the moon in decades, but also because of some key evidence. For example, there is no one in the photos taken on the moon. There are only a few stars, and there is only an extremely clean black. This is because there is no way to create a sky full of stars in the studio.

So was the moon landing 51 years ago really a hoax of the century? And if there are no stars in the moon landing photos, can it be evidence of a fake moon landing?

The answer is of course no. 51 years ago, humans did land on the moon and took the first step to conquer the universe. According to scientists, the absence of stars in the photo is not only not evidence of a fake moon landing, but also proves the authenticity of the moon landing.

Before explaining why the moon could not photograph stars in the Apollo program, let’s first take a look at why some people think that the moon can photograph stars.

According to common sense, the moon basically has no atmosphere, so there is no so-called "sky", and it will not be the same as on the earth, because the scattering of the atmosphere makes it very bright during the day and cannot see the whole sky. Star. So in theory, the moon should be able to see the sky full of stars all the time, but what if the reality is the opposite of the theory?

We all know that the moon has been tidally locked by the earth for a long time. Its revolution and rotation periods are equal (27.32 days), the day and night are 14 days each, and only one side always faces the earth. Therefore, in order to maintain communication with the earth, humans must choose the side facing the earth when landing on the moon.

More importantly, in order to ensure the safety of landing and facilitate scientific research and experiments, it is necessary to choose the daytime of the moon to land on the moon. Otherwise, the landing module cannot rely on the shadows of rocks and impact craters in sunlight to determine the landing location. This It was crucial for the moon landing.

Therefore, when the moon is not blocked by the atmosphere during the day, its surface will reflect sunlight crazily, making the overall environment extremely bright, and this brightness far exceeds the brightness of the Earth during the day.

I believe many people know about a special disease called "snow blindness". To put it simply, sunlight will be reflected in a snowy environment, and the reflected light is so bright that it can cause temporary blindness. Therefore, in order to prevent this situation, activities in snowy areas usually require Wear special filter glasses.

The same is true on the moon. Because the moon reflects very bright light, astronauts must use special helmets to protect their eyes from the strong light.

Like the astronaut’s eyes, the camera used to record the astronaut’s work must also adjust various parameters accurately, otherwise nothing can be captured in an extremely bright environment.

So in order to take clear pictures of astronauts and the lunar surface in a high-brightness environment, the camera naturally has to sacrifice the light in dark areas, and of course the weak starlight cannot be photographed.

Some friends may ask, haven’t they taken a picture of the starry sky during the several moon landings? In fact, during Apollo 16, the two astronauts who landed on the moon carried a special camera called the Far Ultraviolet Camera/Spectrograph, which could shoot the starry sky directly on the moon.

Of course, although this camera can take pictures of the starry sky, and it has indeed taken a lot of starry sky photos, its main function is not to come to the moon to take pictures of the starry sky, but to conduct more complex astronomical research.

It is worth mentioning that whether you are on the moon or elsewhere in the solar system, the starry sky you see is almost the same. Their position and brightness have almost no changes. This is mainly due to the distance in the universe. The scale is too big.

Just like the star closest to the sun is Proxima Centauri, which is about 4.2 light years away from the sun, and one light year is approximately 9.5 trillion kilometers, which means that Proxima Centauri is about 400,000 kilometers away from the earth. Hundreds of millions of kilometers, even if you fly an extra 380,000 kilometers to the moon to see it, it will only be about 100 million times more distance, and the natural appearance will be almost unchanged.

In general, the earth can see the starry sky, and the moon can also see the starry sky. This does not prove that the moon landing was a hoax.

And more importantly, humans are already preparing to land on Mars. Why do some people still doubt the authenticity of the moon landing?