The universe is vast and mysterious. Exploring the universe is the ultimate dream of mankind. In ancient times, because human technology was not developed enough, the ancients always believed that the earth was the only world. They believed that the moon and the sun were revolving around the earth. However, with the development of human technology, With the progress of mankind, we finally walked out of the earth. When we walked out of the earth and saw the universe, our curiosity was attracted by the vastness of the universe. We want to know how big the universe is? In addition to life on earth, is there also alien life in the universe? With these questions, mankind embarked on the path of exploring the universe.
From October 15th to 16th, 2003, our country conducted its first manned space flight. Chinese astronaut Yang Liwei took the Shenzhou 5 manned spacecraft and orbited the earth 14 times in space, which lasted 21 hours and 23 minutes. After successfully completing various scheduled operational tasks, he returned safely to the main landing site. As the first astronaut to fly, Yang Liwei will not only encounter some minor problems, but also face many sudden, unplanned and unexplained situations. For example: when the spacecraft has just entered orbit and entered a state of weightlessness. Most astronauts will have the illusion of "putting the cart before the horse". But in the end Yang Liwei successfully overcame all difficulties and completed all tasks safely.
Later, our country successively landed in space many times. Landing in space is the only way for humans to explore the universe. Since humans stepped out of the universe, humans have conducted many explorations of the universe. As scientists study the universe, we now know that the universe is very vast. The diameter of the universe that humans can currently observe is about 93 billion light-years, and This is not the entire scope of the universe. The universe may be larger than we imagine. There are many mysterious celestial bodies in the universe that we don’t know about, such as dark matter , antimatter , etc. In addition to these mysterious substances, there may be There are other substances, and our earth is a planet in the universe.
Scientists believe that the reason why life can be born on the earth is mainly because the earth meets the basic conditions for the birth of life. These three basic conditions are suitable temperature, sufficient air and abundant water resources. If other planets can also meet these conditions, Three basic conditions, then The possibility of life being born on other planets is also very high. However, humans have not yet found other life in the universe. The universe is not as beautiful as we imagined. The universe is very dark and cold. The coldest places have almost reached At absolute zero, many astronauts have lost their lives on the way to human exploration of the universe.
For example, on March 23, 1961, astronaut Bondarenko was burned to death by a fire in an isolated barometric chamber test. On January 27, 1967, three astronauts suffocated in a high-oxygen environment. On April 24, 1967, the astronaut's parachute did not open when he landed and he died after landing. On June 30, 1971, the cabin door of the Soyuz 11 spacecraft was squeezed open by atmospheric pressure when it entered the atmosphere. The three astronauts did not wear astronauts and were squeezed to death by the atmospheric pressure. On January 28, 1986, the Challenger spacecraft exploded shortly after liftoff, killing all seven astronauts. On February 1, 2003, the Columbia spacecraft disintegrated in the atmosphere, and all seven astronauts died. These astronauts sacrificed their precious lives for human exploration of the universe.
Yang Liwei also heard a mysterious sound in the universe at that time. Yang Liwei said that the sound appeared suddenly. It did not sound all the time, but came in bursts. There was no time period and no pattern. Yang Liwei believed that this sound The sound does not come from inside the spacecraft, but from outside the spacecraft, as if someone is knocking on the spacecraft. This feeling is very scary just thinking about it. Could it be an alien civilization? There have been claims about extraterrestrial civilizations a long time ago. Many people have always believed that there must be other life in the universe. After all, there are too many celestial bodies in the universe. In our Milky Way , there are There are more than 40 billion planets. Is it possible that among so many planets, only the earth is the one where life was born? This is obviously impossible.
Later, after Yang Liwei came back, many scientists speculated on this sound. Scientists believed that if it was really the sound made by extraterrestrial civilizations, then we should be able to see them. After all, the spacecraft we launched have been orbiting The earth rotates, so many scientists believe that this sound should not be made by extraterrestrial life. Later, in 2016, scientists finally found the truth. Scientists believe that this sound is actually the material on the inner wall of the spacecraft cabin that changes under pressure. subtly distorted sounds.
In order to confirm that this statement is correct, scientists also conducted special experiments. In the 1980s, when Soviet scientists were doing BIOS-3 system experiments, the Soviet Union established a fully closed ecosystem at that time, and a group of 3 people Successfully surviving for 6 months, offsetting 50% of their own strength for food needs, these three people also heard similar sounds, which were later determined to be the sounds caused by deformation caused by pressure changes. This result also proves that sound has nothing to do with extraterrestrial life. Although extraterrestrial life must exist in the universe, humans have not discovered extraterrestrial life so far. Scientists believe that extraterrestrial life should exist in the central region of the Milky Way.
Because after any civilization’s technology develops to a certain level, they will need powerful energy as support. In the universe, there are many advanced energy sources, such as stars, black holes, etc. Although we also have many resources on the earth, the These resources are the most common energy sources. They It can only meet the simplest needs of mankind. If mankind wants to develop for a long time, it must find more powerful resources. The same is true for alien life. In the Milky Way, the number of celestial bodies is unevenly distributed. A large number of celestial bodies They are all concentrated in the central area of the Milky Way. If human science and technology develop to a certain extent in the future, we will also go to the central area of the Milky Way.
After all, the resources there are the most abundant. In the future, humans will definitely explore the universe many times. With the advancement of human science and technology, humans will definitely know more and more about the universe, and eventually humans will be able to unlock all the secrets in the universe. Mystery, the editor hopes that human beings can realize their dreams as soon as possible. Is there anything you want to say about this?
