Yang Weill heard a "knock on the window" in space, 17 years later the truth is revealed, glad to have escaped a disaster

When we were young, we would ask our parents curiously how we came to be, and many of them would say that they came in from the garbage can, and when we learned to biology course, it would be clear that people appeared, but still,.are some people would ask how the first human appeared.

Just as how humans came to be, some people will ask how the earth came to be. How was the universe formed? According to the mainstream of cosmology, a big bang occurred about 13.8 billion years ago, then the universe emerged and celestial bodies were formed, and the Earth originated in the primordial solar nebula 4.6 billion years ago.

Since the beginning of history, human beings have been exploring space. The famous poet Que Yuan of the Warring States period wrote "Chi Stu - Heavenly Questions", which is regarded as "the most wondrous work of the ages", in which he wrote: "The sun is not there? What is the light of the turbid dragon?"

But for space, humans have a lot of imagination, "aliens" also existed for a long time, and many people even believe that the ancestors of human beings are aliens, millions of years ago, a group of highly intelligent aliens came to Earth, considered the Earth is suitable for living, but for some reasons, they and the Earth apes live together.

And there are people around the world who claim to have seen aliens and had contact with them, but aliens are still a mystery, whether it exists or not, and only it knows.

In the 16th century, some people observed Mars with a telescope and found many interlocking webs, so they thought it was a canal dug by "Martians", after which Mars and "Martians" were widely known and spread. Many legends were spread.

However, it was later confirmed that the surface of Mars is full of mud and rocks, and often windy, and no living creatures exist, so there are no Martians.

October 4, 1957, the first artificial satellite into the sky, kicked off the human space age, in this year animals for the first time into space, after ensuring that there will be no accidents, the former Soviet cosmonaut Gagarin became the first person to enter space, but also the first person to see the full picture of the Earth from space.

Yang Weill, on the other hand, was the first person from China to enter the sky. On October 15, 2003, in the presence of the Chinese people, Yang Weill took the Shenzhen V spacecraft carried by the Long March 2 rocket into space for the first time, playing a milestone role.

Yang Weill also completed his mission well, making many Chinese people teary-eyed, but Yang Weill heard a "knock on the window" in space, making him curious, until 17 years later the truth is revealed, but also glad to have avoided a disaster.

The reason why there is a "knock on the window" sound is that in the space capsule the pressure environment changed e, and the internal violent fluctuations, this phenomenon is very dangerous, if Yang Weill did not return to Earth in time, it is likely to, it is likely to stay in the sky forever.

After all, the environment of space is very different from the Earth, astronauts are also after all the training and so on, the best of the best before deciding to enter space, and in space accidents in astronauts are not without, so far there have been 18 astronauts left in space.

In recent years extraterrestrial life is still scientists want to confirm, and this has given rise to a number of the end of the Earth, flying to an extraterrestrial planet as the material of science fiction films.