Hundreds of years ago, mankind embarked on the path of technological development. With the help of technology, we soon realized the dream of flying to the sky and stepped out of the earth to explore the universe.
Facing the vast universe, we understand how small the earth is and how small the human being is. While lamenting the vastness and mystery of the universe, we are constantly thinking about a question: Does alien civilization exist? Some people may say that although the universe is large, the earth and human beings are unique, and there can be no other intelligent civilizations.
But on the other hand, isn’t the existence of the earth and human beings just the strong evidence for the existence of alien civilization? Are the solar system and the earth special and unique in the universe? Of course not. By observing the vast starry sky, we found that the Milky Way outside the solar system has a diameter of 100,000 light-years, and within this range, there are 100-400 billion stars.
Every star is basically accompanied by the existence of a star system, and the solar system is just one of hundreds of billions of star systems, and there is nothing special. And within the observable universe of 93 billion, there are at least trillions of large galaxies similar to the Milky Way. But let us not forget that 93 billion light-years are not the whole universe, but just the tip of the iceberg.
From the perspective of the vast universe, the number of terrestrial planets is too large to be counted by numbers. Many of them are ecological planets very similar to the earth, and the possibility of life and civilization is very high. Therefore, whether from the perspective of the vastness of the universe or from the age of 13.8 billion years, the existence of alien civilization is beyond doubt.
Since there are theoretically a large number of alien civilizations in the universe, how do we find them? To find alien civilization, the most direct way is to go to various galaxies in the universe to explore, so that you can observe the situation of the planet at close range, and it is clear at a glance whether there is life and intelligent civilization.
Of course, it will take a very long time for humans to realize such a wish. For a human civilization that has not yet been able to get out of the solar system, our way of searching for alien civilizations can only rely on astronomical telescopes. Ordinary starry sky telescopes can only observe at most a certain planet that is very similar to the earth, so it is speculated that this planet may have an intelligent civilization.
To truly determine whether there is an alien civilization in a certain galaxy or a certain planet, we also need to use another weapon, that is, a radio telescope. A radio telescope is a type of astronomical telescope. The way it searches the starry sky is to judge by signals. It is necessary to know that there are a large number of radio signals in the universe. Most of these signals are emitted by various celestial bodies or some cosmic phenomena.
In addition to these natural signals, there may also be signals from alien civilizations in the universe. If a civilization has entered the age of science and technology or even has entered the age of interstellar civilization, the application of wireless signals is indispensable. And the stronger the civilization, the higher the signal energy intensity will be, and the easier it will be for us to receive.
Of course, there may be signals of alien civilizations in the universe, but it is not easy to find them. A powerful radio telescope is needed. China Sky Eye is currently the most powerful radio telescope in the world.
China SkyEye is an autonomous space telescope led by the China Astronomical Observatory. It was officially completed on September 25, 2016. China Sky Eye not only has China’s independent intellectual property rights, but is also the largest and most sensitive radio telescope in the world. It can use the spherical cap reflecting surface to form a 300-meter-diameter instantaneous reflection paraboloid in the direction of the radio power source, so as to track all celestial bodies in the range of changing relative positions. , The signal can be traced to 13.7 billion light-years away! Its actual performance has been improved ten times compared with the Arecibo radio telescope.
Such a powerful SkyEye naturally has important uses. One of the most important missions is to search for extraterrestrial civilizations. From its official completion in 2016 to 2020, China SkyEye has completed the test and officially announced on April 28, 2020: Apocalypse Extraterrestrial Civilization Search Project.
Since China’s Sky Eye is very powerful, its search range and sensitivity are also very high, so our expectations for it to search for extraterrestrial civilizations are still very high. Some friends may say: Humans have been searching for alien civilizations by searching for signals from the universe for decades. Until now, there has been no result at all. Can the celestial eyes find something?
We have no doubt about the correctness of searching for extraterrestrial civilizations through cosmic signals. This is currently the most promising and successful method for humans to search for extraterrestrial civilizations. If there are a large number of interstellar civilizations in the universe, it is inevitable that wireless signals will continue to spread in the universe, and there is also a possibility that a powerful alien civilization may have already observed the earth, and it is suspected that there may be civilization on the earth, so A powerful wireless pulse signal is aimed at the earth, sending radio waves to humans.
This kind of directional radio wave will undoubtedly have a very high energy level and very accurate. Once it arrives on the earth, the probability of being received by us will be very high. Moreover, such signals can be easily distinguished from natural signals, and they will be very different. If we can receive such a signal, we can naturally prove the existence of an alien civilization.
Relying on the powerful search ability of the Sky Eye, as long as there is a signal from an alien civilization into the solar system, the possibility of being searched is very high. Moreover, scientists have also discovered many terrestrial planets very similar to the Earth through astronomical telescopes, as well as some galaxies suspected of having extraterrestrial civilization. The Chinese Sky Eye is not blindly searching in the universe, but searching for several key areas, which makes it easier to find.
If alien civilization exists, there will naturally be some traces flowing out, and wireless signals are undoubtedly the best traces. I believe that my country’s Tianyan will make major discoveries in the near future through hard work. Scientists once said that the first evidence of the existence of an alien civilization may fall on China’s Tianyan. I hope that the Tianyan will live up to human expectations.