Can humans achieve alien migration? After leaving the earth, great changes have taken place in the astronauts' bodies.

Recently, China announced that it had received a signal from the distant Swan constellation 10,000 years ago. Does this mean that we have received information from aliens? Actually, it is not. The "signal" we received this time is a gamma photon with high intensity energy, and its energy is 65.438+billion times that of visible photons.

A few days ago, China's Mars probe "Zhu Rong" successfully landed on Mars, becoming the second country in the world to land on Mars, opening a new milestone in China's space exploration.

It can be said that we are very proud of this achievement, but the continuous progress of space science and technology also provides us with a possibility: will humans immigrate to space in the future? In fact, this idea has never been forgotten in science and technology movies or real life, but only exists in people's imagination. But there are still many people interested in this practice.

With the continuous progress of human science and technology, people's exploration of space has never stopped. With the progress of science and technology, people have more and more knowledge of space, and there are various ways to know space. They not only observed outer space on the surface, but also began to launch artificial celestial bodies. Later, man landed on the moon. We have never given up looking for extraterrestrial life and alien civilization, hoping to prove that human beings and other life on earth are not unique in the vast universe.

Human development has entered 2 1 century, which can be described as "changing with each passing day". We began to plan to leave the earth, and various space activities became more and more frequent. However, can humans really leave the earth? Many scientists are worried about this problem.

196 1 year, former Soviet cosmonaut Gagarin became the first man in space. So far, many astronauts have been to space. However, after research, scientists found that the astronauts' physical condition changed greatly before and after entering space.

It is found that the physical condition of astronauts has a great relationship with the time they stay in space. The longer they stay in space, the more likely they are to have physical problems, especially the effects on their brains.

According to the data, after the astronauts who lived in space for more than three months returned to the earth, the brain structure changed, not only the cerebrospinal fluid increased, but also the ventricles became very large.

In fact, this situation is not irreversible, but recoverable. Generally speaking, astronauts can return to normal after returning from space and living on the earth for more than seven months. In other words, after returning to the earth, under the influence of the earth's environment, the abnormal body structure can still be restored.

And why are astronauts abnormal in space? At present, scientists have not got the exact answer. Some people think that this situation is caused by the weightless environment in space.

In fact, scientists have done this experiment before, which is the famous "Scott Brothers" experiment. The Scott brothers are identical twins. From a biological point of view, they both have the same genes, and they also became NASA astronauts in adulthood. Scientists decided to do this experiment on the Scott brothers, in order to understand what effect the human body will have in the space environment for a long time, so with the consent of the Scott brothers, NASA conducted a space experiment.

The twin astronauts were born in 1964. It can be said that in terms of age, they are all senior astronauts of NASA.

Since 1996, the Scott brothers have entered NASA and started space flight training. From 1999, the two brothers began to receive different flight training and perform different space missions.

In 20 14, the younger brother of twin astronauts went into space, lived on the international space station for 340 days, 8 hours and 42 minutes, and finally left the international space station to return to earth. During the long space journey, the twin astronaut's brother has been living on the earth and has not gone into space to perform any missions.

Twin brothers with the same genes have lived in different environments for 1 year, which leads to their differences.

After studying the two brothers, scientists got an unexpected result: the genes of the twins began to become different, and 93% of the genes of the younger brothers who went to space returned to normal levels after returning to Earth.

But there are about 7% genes in my brother's body, and there have been irreversible long-term changes. This change has also led to his physical fitness, which is a little worse than his brother astronaut who has not entered space, and his appearance looks a little old.

Therefore, scientists finally came to the conclusion that the limit of human health in space is about six months, that is to say, if they live in space for more than six months in a row, their bodies are prone to problems.

But this seems to illustrate the fact that human beings may never leave the earth because of physical changes and other factors, or they can only enter space for a short time and cannot go further. Alien immigration has become impossible.

Researchers believe that unless human beings have a chance to find a planet exactly like the earth in all aspects, they may be bound to the earth forever.

Therefore, even if Mars is transformed by human beings, there will be some problems in human life on it. No scientist can be 100% sure that human beings can really transform Mars and have the opportunity to immigrate to Mars.

After all, there is no magnetic field and no atmosphere on Mars now, and it can't resist strong solar storms at all. If you want to transform Mars into a planet suitable for human survival, it is tantamount to recreating a planet. If you want to immigrate to Mars, you must reawaken the vitality of Mars. The most difficult thing is to make Mars have a stable magnetic field again, but it is almost impossible.

Moreover, Zhang Zeng, China's No.1 chief designer, said in an interview with the media that the Gobi Desert with the worst environment in China is more suitable for human survival than Mars, and it is much more difficult to transform Mars than the earth. If we have the ability to transform Mars, we might as well transform our earth.

Some people think that many living conditions on earth, such as liquid water, suitable temperature, especially oxygen that humans need to breathe, may not be necessary for other life in the universe.