22.8 billion kilometers away, the spacecraft sent back a photo, but it was not good news

However, some researchers believe that although human beings are now the only intelligent life in the solar system, and we may be unique in the universe, human beings may never be able to leave the solar system. What's going on? ? For this question, the spacecraft 22.8 billion kilometers away gave the answer.

Why is it said that humans may never be able to leave the solar system?

After Galileo invented the telescope, human beings also have another pair of eyes to see farther places. After the end of World War II, a fierce "space race" was launched between the United States and the former Soviet Union, and in the process, the human space age also began.

In the 1970s, NASA launched the Voyager series of probes. They are also the first space probes in human history. The goal set by scientists is to leave the solar system after they have probed the solar system. Fly into the farther cosmos.

Compared with the Voyager 2 probe, which had problems in the middle, Voyager 1 is the most successful one, and it is also the farthest one from the earth today. If the Oort cloud does not exist in the solar system, then travel. Orbiter 1 may have already flown out of the solar system.

When it flew to a place about 22.8 billion kilometers away from the earth, Voyager 1 sent back a photo of the earth, which silenced everyone who saw it.

In the photos returned by Voyager 1, the earth is just a small bright spot, and it looks extremely small, which means that even when looking at the earth at the edge of the solar system, the earth, which is already very large in our minds, is not It still seems insignificant, if it is placed in the scope of the Milky Way, or even the universe?

According to the data, the researchers believe that the number of stars in the Milky Way is between 100 billion and 400 billion. In the Milky Way, the solar system is just a bright spot in the middle and outer parts of the Milky Way. Of course, at this time, the earth has long been ignored. Forget it.

In the vast universe, there are at least hundreds of billions of large galaxies similar to the Milky Way. What is this concept? If you take a family photo for the entire universe, the Milky Way has become a small bright spot, and the solar system will also be ignored. Naturally, the Earth will not be worth mentioning.

At the same time, because the universe is so big, the distances in the universe are calculated in light-years. In the universe, the nearest star system to us is Proxima Centauri 4.2 light-years away.

If it is moving at the speed of light, it will take 4.2 years to go from the earth to Proxima Centauri without resting all the way.

But we all know that the speed of human beings is very slow. According to the current human speed, the real situation is that it will take at least 70,000-80,000 years for humans to go to Proxima Centauri.

What is the lifespan of a human being? Modern scientific research believes that the limit is about 120 years old. Even if the lifespan of human beings is greatly extended in the future, it is impossible to live for 10,000 years. Obviously, it is entirely possible for human beings to be trapped in the solar system. You know, this Even if the Oort cloud exists in the solar system, if there is an Oort cloud, let alone humans, even the Voyager series of probes may not be able to leave the solar system.

What is the Oort Cloud?

How was the sun born? As a star, the sun was born from a nebula. After that, the debris in the nebula formed major planets, and some studies believe that the nebula that made up the solar system eventually turned into a circle of gas and dust, wrapping the solar system. This is the so-called Oort cloud.

Although the Oort cloud is an imaginary concept, modern science generally believes that the Oort should exist, and its radius is about 1 light-year. If the Oort cloud exists, then, according to the current speed , Voyager 1 may still take more than 10,000 years to leave the solar system from the earth.

It can be said that the lifespan and speed of human beings have become the biggest weapons to limit human beings. Therefore, many researchers believe that human beings may never be able to leave the solar system. Of course, there is really no way. If human beings have the opportunity to find insects Holes, or achieving immortality, might give us a chance to leave the solar system.

Do wormholes really exist?

What is a wormhole? This is also an imaginary celestial body. In the 1930s, Einstein, through computational research, indicated that there may be a space-time shortcut in the universe. If it is found, then even if the speed is slower than the current speed, it will still be There is a chance to leave the solar system.

However, after years of continuous research, there are still no clues about wormholes. Einstein believed that wormholes and black holes are connected, and if humans want to find wormholes, they need to enter the black hole first.

In addition, Hawking also once believed that wormholes, as cracks in time, may be everywhere, and there may even be many wormholes around us, but the emergence of wormholes requires many conditions, so humans will always be No clue.

Interestingly, some scientists have now proposed that perhaps with the development of human beings in the future, human beings will have the opportunity to create an artificial wormhole, so that we can come and go freely in the universe and go wherever we want. The place.

For example, there are many people who suspect that the UFOs that frequently appear on the earth may have passed through the wormhole, arrived at the big one on the earth, and then left through the wormhole.

In the final analysis, it is still caused by the lack of scientific and technological level of human beings at this stage. If human beings have the opportunity to realize stellar civilization, maybe at that time, the speed of human beings will have a new understanding of the research on unknown celestial bodies in the universe. .