Voyager one sent a picture to the earth in the distant sky. Scientists were silent when they saw it

13.8 billion years ago, there was a big bang at a mysterious singularity, and then the universe was born. After the birth of the universe did not stop its pace, but to exceed the speed of light in the rapid expansion, in the process of expansion is also constantly forming planets, stars and other celestial bodies. The earth is an ordinary planet born 4.6 billion years ago.

The early Earth was very common, no different from other earth like planets. It was also a very desolate and purgatory planet. But the earth’s luck is very good, in the later continuous evolution process, with a lot of water resources, and then step by step has a beautiful ecological environment. Good ecological environment provides conditions for the birth of life.

Mankind was born millions of years ago, and entered the primitive civilization about 10000 years ago. After continuous evolution and development, there is now a developed scientific and technological civilization. It can be said that it is not easy for human beings to go out this way, and the first thing to achieve the earth is the vast universe. Without the support of the universe, the earth can not be born, nor can human beings be born.

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Therefore, after human beings walk out of the earth, they are full of infinite interest and yearning to explore the universe. For human beings, there are too many mysteries in the universe waiting for us to solve. However, there are three things that scientists are most interested in. One is the origin of the universe, and the other is how big the universe is? The last one is the existence of alien civilization?

The first two questions are too far away for human beings who have just stepped out of the earth, so scientists focus on the third question, that is, does alien civilization exist? Many people will doubt the possibility of the existence of alien civilization before human beings go out of the earth and see the vast universe.

However, when we really see the vast universe, there is little doubt. Most people believe that alien civilization exists and that human beings are not alone in the universe. Of course, before the real discovery of alien civilization, everything is just conjecture. Only when the real discovery of alien civilization, we can turn the conjecture into reality.

So how to explore the search for alien civilization? One method is to observe through astronomical telescopes, and the other is to send exploration spacecraft. In 1977, scientists launched Voyager 1 and Voyager 2. These two spacecraft are not ordinary probes. They shoulder the responsibility of exploring alien civilization.

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The Voyager spacecraft is a collection of the most advanced space technology of mankind at that time. It not only has powerful photographic equipment, but also carries a CD recording the information of human civilization and the coordinates of the earth. If one day Voyager is discovered by alien civilization, we can know the existence of the earth and human beings through the above CD, and we can easily find the earth according to the coordinates left above.

Voyager 1 and Voyager 2 are both intergalactic spacecraft. Their goal is to fly out of the solar system. It’s just that the two spaceships are flying in different directions, and Voyager 2 is much slower than Voyager 1, and the information sent back to earth is not as orderly as Voyager 1. So scientists focused on Voyager one.

Voyager-1 has also lived up to expectations. After more than 40 years of flight, voyager-1 has flown 21.6 billion kilometers, which has gone out of the Kuiper belt and entered interstellar space. Voyager 1’s 40 year journey is relatively smooth, with no special faults or events. In addition, during its journey outside the solar system, it is also taking some pictures of the stars, so that scientists can have a deeper understanding of the solar system.

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When people walk out of the earth and see the vast universe, we will understand that the earth is very small in the universe. So how small is it? Is there a more intuitive experience? And this intuitive experience, Voyager one has done for us. When Voyager 1 flew about 6.4 billion kilometers away from the earth, it took a picture of the earth and sent it back to the earth.

Scientists were very excited and silent after seeing this picture. The background of this picture is a dark cosmic environment. Under the dark background, there are many white dots, which are all stars. And the earth is among these numerous white spots. If we didn’t enlarge the picture, we would not even see the small white spot of the earth.

This shows how small the earth is. And this is just a picture taken 6.4 billion kilometers away from the earth. If we take it further, the earth will not even have white spots. Facing the small solar system, the earth is also so small, so in the Milky way, the earth is even too small to count as a grain of dust. What is it to put the earth in the whole universe? Someone once compared the universe to a living body, and the earth is a cell in this living body.

In fact, this analogy is very good for the earth. With the continuous improvement of human’s understanding of the universe, we now find that the earth may not even be a cell, but only a gene in the cell. This is how small the earth, which has existed for millions of years, is when facing the vast universe.

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Although we have seen the smallness of the earth and feel a little depressed, on the other hand, we are more convinced of the existence of alien civilization. The reason why we can’t find them now is that human science and technology are still very backward, and we haven’t been able to go out of the solar system to explore other galaxies. If human beings become an interstellar civilization and can freely traverse the whole galaxy, it is also a very simple thing to discover alien civilization.

Of course, we should not be too optimistic about the alien civilization. Hawking once said that the alien civilization may not be friendly. There are also friendly and malicious alien civilizations. If human beings unfortunately encounter a malicious alien civilization, then human beings may face a huge disaster.

We need to search for alien civilization, but in the process of searching, we also need to hide ourselves, especially not to expose the earth’s coordinates. With the continuous improvement of this kind of cognition, many scientists are very worried about the CDs carried by Voyager. Once they are acquired by alien civilization, the earth and human beings will be exposed.

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Fortunately, the scope of the solar system is much wider than previously thought. At the speed of Voyager, it will take at least 10000 years to really get out of the solar system. Such a long time, enough human technology to achieve a leap, then we can catch up with Voyager, and then recycle or destroy the above disc.

Guys, what do you think of this? Welcome to leave a message below to discuss and express your opinions.

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