Chapter 1540: White Mist

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Chapter 1540 White Mist

Soon the flying saucer spacecraft descended to a depth of one kilometer. Now they are in the center of the space enclosed by the entire Shackleton Crater.

Arriving at this place, Zhao Zhongyao felt that there should be no problem with their environment. After all, it has dropped two kilometers. Nothing dangerous was found at all.

'Okay, it seems that there is nothing dangerous here, we can descend a little faster. 'Zhao Zhongyao speeded up again as he spoke.

But as soon as he descended about a hundred meters, he saw something like fog suddenly appeared outside the flying saucer in the originally empty space. These things are supposed to be peaceful. But now it seems that it was hit by a flying saucer and flying saucer, and then it began to tumbling around.

When Zhao Zhongyao saw the white mist, Feifei, Tiantian, and Qu Yuqian also saw the white mist.

Feifei looked at Dad in puzzlement and asked, 'Dad, what are these fogs. How does it look like the mist on our earth! '

After hearing Feifei's words, Zhao Zhongyao also looked at the fog near the flying saucer. He was also very surprised, and he didn't know what these white fog were.

'I don't know, these things should not be fog. Because there is no air or water on the moon, how could there be fog. 'Zhao Zhongyao also couldn't figure out what these white mist-like things were. But he felt that these things should not be fog.

'Dad, could this mist be some ice substance? ’ When Feifei saw these fogs, he thought of a special celestial body in the solar system - a comet.

Comets are indeed very unique objects in the solar system. These celestial bodies are actually made of ice. When they fly close to the sun, they will volatilize, and then turn the whole body into a big broom. This is really a very miraculous thing. Therefore, the ancients in our country called the comet the broom star.

The ancients in our country were very clever in understanding this type of comet. They not only vividly say that this kind of comet with a long tail is called a broom star, but also think that when such a broom star passes through the sky, unfortunate things will happen. Therefore, this broom star is an unlucky star.

The reason why the ancients called comets broom stars is also very reasonable. Because when a comet flies close to the sun, it does have some serious consequences. Because after this kind of asteroid volatilizes itself, it will become an asteroid with a long tail. Its tail is very long. Generally speaking, comets with smaller masses have shorter tails. Comets with large masses have longer tails. But even for low-mass comets, their tails are millions of kilometers long. If there are some comet tails with very large masses, their tails may be hundreds of millions of kilometers long, or even more than a billion kilometers long.

If the comet's long tail is very long, it may have an impact on the earth's environment when it passes through the earth's orbit. When the comet's huge comet tail sweeps over the earth, it will make the earth suffer from a meteor shower.

If these meteor showers are just some ice substances with a small mass, they may not cause any harm to the earth. Because these icy substances with low mass will rub against the atmosphere when they fly over the earth, and then they will turn into a meteor and disappear. In this way, not only will they not cause any harm to us, but they will also create a spectacular meteor shower for us to watch.

But if some of these icy substances are relatively large and fall to the earth before burning up when flying through the atmosphere, it will not be so fun. If the mass of the ice material falling to the earth is large enough, the consequences will be very serious.

It is said that 65 million years ago, the asteroid that hit the earth and caused the extinction of dinosaurs was a small comet. This small comet is very likely to be a large comet passing near the sun, and after being disintegrated by the high temperature of the sun, it has become many comets. These comets fly in low-Earth orbit in the solar system. A comet with relatively large mass accidentally flew near the earth, was captured by the earth's gravity, and then hit the earth. Caused a serious dinosaur extinction event. tv mobile terminal/

It should be said that we modern people know that when a comet passes by, it may have a serious impact on the earth. But how the ancient people knew that when the comet passed by, it would have a serious impact on the earth, this is unknown.

But the ancients already knew that when a comet passes by, some serious natural disasters may occur. It is precisely because of this that they call comets broom stars, and feel that when comets pass over the earth, it is an unlucky phenomenon.

Feifei also knows a little about comets. Looking at the icy substances in front of him now, he thought of comets, special celestial bodies in the sun.

When Zhao Zhongyao heard what Feifei said, he felt that it was very reasonable. After all, what is now in the anti-impact crater is nothing else if it is not the icy material of the comet. Because only the icy matter of comets can form this kind of fog-like thing.

In fact, the icy matter in comets is similar to that on the earth, but of course they are not the same. According to the observations of modern scientists, the composition of the ice material on the comet is very similar to the composition of the sea water on the earth. This further proves that the water on the earth is probably the result of many comets hitting the earth.

For example, science in the past conveyed such a story to people-comets are the source of water on the earth. 3.8 billion years away

In the ancient times before, the primitive earth was still a hot and dense ball of fire, a purgatory where life could not exist at all. However, there were countless comets across the sky, visiting the earth from thousands of miles away. Under the guidance of gravity, these cosmic ice crystals melt into the earth and inject sufficient water into the earth, thus writing the necessary preface for the opening of the chapter of life.

It's a good story, but the scientists uncovered more clues that it's not that simple. Is the comet the source of the water of the earth? Or is this a beautiful misunderstanding after all? How many possible sources of water on earth are there? This seems to be a matter of debate.

In modern times, some scientists believe that the water on the earth was formed by volcanic eruptions in the early days of the earth. It is some hydrogen and oxygen produced by volcanic eruptions that combine to form rainwater, which falls to the ground to form oceans.

But when isotopic studies of this so-called volcanic "pristinate water" were performed, it was unexpectedly found that they were composed of isotopes that were very similar to surface water, proving that they were actually just seeping into the ground and then regenerating. Surface water that circulates to the surface. The astrogeological research emerging in modern times shows that among the earth's neighbors, whether it is Venus and Mercury, which are closer to the sun, or Mars, which is farther from the sun, or even the moon which is the closest to the earth, are all water-poor, and only the earth is uniquely blessed. With such a huge amount of water, it cannot but be surprising. Scientists disagree on this.

Some believe that Earth's water, at least most of it, is not inherent to Earth but brought by comets that crashed into Earth. Recently, some scientists from the University of Iowa in the United States discovered from thousands of photos of the earth's atmospheric ultraviolet radiation sent back by artificial satellites that there are always some small black spots on the disc-shaped earth image. Each small black spot exists for about two to three minutes, with an area of ​​about 2,000 square kilometers. After careful inspection and analysis, they believe that these spots are caused by some small comets composed of ice cubes rushing into the earth's atmosphere. The result of the conversion of heat into water vapour.

It can also be estimated from the photos that about 20 such small comets enter the earth every minute. If its average diameter is 10 meters, then 1,000 cubic meters of water enter the earth every minute, which can reach about 0.5 cubic kilometers in a year. Based on this, it can be deduced that in the 4.6 billion years since the formation of the earth, 2.3 billion cubic kilometers of comet water will enter the earth. This figure obviously greatly exceeds the existing total amount of seawater. Therefore, whether the opinions of the scientists at the University of Iowa are reliable remains to be verified.

So, no matter what, where the water on the earth came from is an unsolved mystery. Although many of our modern scientists want to solve this mystery. But nature seems to like to tease humans. No matter how many methods humans use, it is difficult to explain where the water on the earth comes from.

Now Zhao Zhongyao and their wives and children are on the moon. The moon is not only a satellite of the earth, but also a'historical museum. ’ In this ‘historical museum’, there may be some evidence on display about where the water on the earth came from.

What Zhao Zhongyao and the others saw from a high altitude just now was just what the entire impact crater looked like. It feels like the impact crater is not very big. But when they really flew to the top of a mountain in this impact crater, they realized that this impact crater is also very large. After all, this impact crater is more than 20 kilometers wide and four to five kilometers deep.

Zhao Zhongyao is now in the Shackleton crater with his wife and children. They have descended to a depth of two kilometers in this place. Zhao Zhongyao and the others saw something strange.

These things are some mist-like gases. As soon as Feifei saw these gases, Feifei wondered if it might be some icy matter from a comet.

After hearing Feifei's words, Zhao Zhongyao said,'What you said makes sense, but we still have to go to the bottom of the impact crater to have a look. Maybe there is the answer we need to know. '

'Okay, then let's go down quickly! ’ Feifei became more and more curious.

So, Zhao Zhongyao wanted to speed up to the bottom of the impact crater again. But when he started to accelerate again, the spaceship suddenly shook. It's as if something is pushing the spaceship.

This frightened Zhao Zhongyao. Not just Zhao Zhongyao, but of course his wife and children. They were all terrified.

'Dad, what's going on, why is our spaceship shaking. Feifei looked at Zhao Zhongyao with surprised eyes and asked.

Tian Tian and Qu Yuqian were the same, when they both felt the entire spaceship shaking, their faces turned pale from fright. After all, this is the first danger they have encountered since their expedition to the moon.

Originally, the moon was already a relatively familiar place for Zhao Zhongyao and the others. After all, Zhao Zhongyao and the others have already built a moon city on the moon. Now there are often people living here on the moon.

But the moon is also huge. Compared with the entire moon, Moon City is really so small that it can be ignored. Even now there are 100,000 people living in Moon City. But these people can only live in Moon City. Usually it is impossible to leave Moon City. If they want to leave Moon City, they have to take a flying saucer to leave, otherwise, it is impossible for them to leave Moon City.

Although these people all lived on the moon, they certainly didn't know anything about the moon. Let alone them, even Zhao Zhongyao, the chief designer of Moon City, often comes to the moon and has studied a lot of information about the moon. Even so, Zhao Zhongyao knew that he still knew very little about the moon. After all, the moon is also very big, and it is not an easy task to fully understand the moon.

Actually, let alone the month

The ball is gone, even if it is the earth, how much do we know. Although we humans have lived on the earth for millions of years. But the days when we really look at our earth from a scientific perspective are not far away. It is very difficult for our ancients to look at the earth on which we live from the perspective of modern science.

Therefore, the moon still has high research value for us humans. If we want to understand the earth, we can also start by understanding the moon. After all, the moon may have higher research value than the earth.

This is because the environment on the earth, due to natural and man-made reasons, is now quite different from hundreds of millions of years ago. If we want to understand the earth hundreds of millions of years ago, it is difficult to find any kind of evidence.

But the moon is different. The moon is a 'history museum' of the solar system. In this "historical museum", there are many things that can be evidence for our research on the origin of human beings and the origin of life on earth. tv updates the fastest//

If we want to see that there is no life on the moon, only some craters, we feel that there is no research value on the moon. If we think so, it is a big mistake. It is precisely because there is no life on the moon that it is even more precious and rare to us humans. It is precisely because of the moon that we can understand our earth better.

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