The probe has found a new crater in the south pole of Mars. Its impact pattern is very special

There are eight planets in the solar system. With the rapid development of human science and technology, 50 years ago, human beings finally realized the flying dream from ancient times to the present, went out of the earth and began to explore the universe. As human beings have just stepped out of the earth, space technology is still very backward. Without a fast spacecraft, we can not get out of the solar system. We can only explore and study the planets in the solar system.

Among the many planets in the solar system, Mars is the one that attracts the most attention of scientists. Since last century, mankind has launched 43 probes to Mars, 17.5 times successfully. The latest Mars probe is the insight land probe that landed on Mars last year.

But why do humans explore Mars? In fact, there are many reasons why scientists pay so much attention to Mars. First, Mars is a neighbor of the earth, and it is one of the closer planets that human beings can explore. Second, Mars has many similarities with the earth. Scientists speculate that about 4 billion years ago, Mars might have the same climate as the earth Yes, a planet with rivers, lakes, oceans, and maybe even Martian life.

The unknown causes make Mars what it is now. Therefore, exploring the causes of climate change on Mars can provide important reference for human beings to protect the climate conditions of the earth. Moreover, there is a huge ozone hole over Mars, which shows that Mars used to have an ozone layer, which is something only a living planet has, but now the oxygen layer of Mars has disappeared, and how it disappeared is also a secret that scientists want to explore.

Scientists speculate that there may have been life on Mars. If so, there may be life fossils on Mars. If they can be found, it will definitely be the most exciting moment in the history of human exploration of space. This shows that Mars has the conditions for life. As long as it is transformed, it may become the first immigrant planet for human beings.

Although Mars looks very desolate and full of sand, it doesn’t mean that there is no water on Mars. The Mars Orbiter has found a lot of ice sheets in the south pole of Mars, which indicates that Mars has water until now, but because of the low surface temperature of Mars, it can only exist in the form of ice, and there may be liquid water under the ice.

Mars also has a research that scientists are very interested in, that is, there are many craters on Mars, and new craters are formed every year, which shows that Mars is often impacted by stars, and this may be one of the reasons why Mars has become like this.

Earlier, when NASA Mars Reconnaissance Orbiter was flying over the Antarctic ice sheet on Mars, it found a strange “explosion” pattern. After the picture of this pattern was sent back to the earth, scientists believe that this is a fresh impact crater through research and analysis, which may have formed around August last year, indicating that this location was hit by a meteorite at that time.

However, the explosion pattern formed by the impact of this meteorite is very strange. Its inner and outer colors are obviously different from the 30 meter diameter crater discovered by the Mars probe in 2014. The explosion pattern of the crater discovered in 2014 shows the same blue in depth. However, the color inside and outside the fresh crater is obviously different. What’s the matter?

Through analysis, the scientists believe that this may be related to the different locations of the two impacts, and the different geological conditions at the different locations. The crater discovered in 2014 is located in the gold dust area of Mars. After the impact of the meteorite, the ejected material forms a radioactive radiation pattern. However, the new crater discovered some time ago is located in the Antarctic ice layer. The huge impact of the meteorite penetrates the ice layer and throws the sand and soil under the ice layer out of the ice, because it forms the inconsistent color inside and outside. In fact, we are on the ground You can do a very small experiment on the ball.

You hit a free falling iron ball on the earth from high altitude into the thin ice layer on the ground. Under the ice layer is sand. The impact force breaks through the ice layer, and it will also form a pattern similar to Mars. The difference is that one pattern is very spectacular, and the other is very small.

At present, 248 new impact craters have been found on Mars. It can be seen that there are many celestial body impact events on Mars every year. It also tells us how important it is for a planet to have a thick atmosphere. The diameter of these new craters on Mars is about 4 meters, which indicates that the impact stars are not big, and the diameter is about 1 meter about.

If Mars has a thick atmosphere, meteorites of this size will rub and burn through the atmosphere. When they fall to the ground, they will either disappear or become very small, which will not cause much damage. Unfortunately, due to unknown reasons, the atmosphere of Mars has basically disappeared. At present, only a very thin atmosphere exists.

In fact, the reason why Mars has such frequent meteorite impacts has something to do with its location. We know that there is an asteroid belt in the solar system, where there are at least hundreds of thousands of asteroids of different sizes and other stellar debris. The location of this small asteroid belt is just between Mars and Jupiter, right in front of Mars’ home, so it often happens It’s not surprising that stars hit Mars.

Through research and analysis, scientists have found that the reason why Mars has become like this may have a significant relationship with the existence of this asteroid belt. Just imagine that there are a large number of celestial bodies at the door of Mars at any time. They often hit Mars frequently. No matter how tenacious and energetic the planet is, it is very difficult to survive and will eventually be destroyed by constant asteroid impacts.

After watching Mars, let’s see how lucky our earth is. The position of the earth is so good. With Jupiter and Mars in front of us, the probability of asteroid belt objects hitting the earth will be much lower. The earth has a thick atmosphere. Even if small objects with small eyes enter the earth’s atmosphere, they will burn up in advance and will not hit the ground, causing great damage.

In the history of life on earth, the only time an asteroid hit the earth was the dinosaur mass extinction 66 million years ago. An asteroid impact made the earth experience the fifth mass extinction, with 80% of the earth’s life including dinosaurs extinct. Fortunately, the probability of such an event is too low. We still have to thank Jupiter and Mars for blocking arrows ahead.

If the position of the earth and Mars is changed, it is possible that the earth will face the same fate as Mars. It can also be seen from the situation of Mars and earth that any planet with intelligent life in the universe must be in a relatively safe and stable environment and position. Only a safe position without threat can give enough time for the development of the living planet and the birth of intelligent life and civilization.

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