1. Are astronauts' blood samples with genetic mutations?
We have been toiling to explore space, will human beings really succeed in flying into space one day?
But surprisingly, studies have shown that it is not so simple for humans to fly off the planet. The researchers were surprised to find significant changes in the genes of 14 astronauts before and after they were in space.
《通讯生物学（Communications Biology）》发表
A study published by one of New York's top private medical schools showed that some of the genetic mutations in astronauts' genes, even in the harshest conditions of space, are shocking.
The number of mutants in the tumor suppressor gene TP53 is 7
The data shows that astronauts have a large number of variations in their DNA sequences during their time in space. On the tumor suppressor gene TP53 alone, seven astronauts have developed mutations. In this regard, some experts said that this just confirms that human beings' adaptability to the space living environment should not be very strong.
The good news is that, at least for now, the genetic mutations in astronauts' bodies do not pose a threat to their lives. It is not only astronauts whose genes are mutated, but it is also impossible for humans to avoid genetic mutations in their daily lives. Among them, there are some genes that can help people better adapt to changes in the external environment, which plays a key role in nature's selection.
And in the field of astronomy, scientists are also very interested in the genetic mutagenesis phenomenon that occurs in the human body in the gravityless environment of space. These research results will not only help mankind to explore deep space, but also help mankind better adapt to the space beyond the earth, and scientists will also conduct more in-depth research and exploration in this field in the future.
2. The relationship between science fiction stories and real situations, will human beings be "confined" on the earth?
People can often see a lot of unexpected things from some science fiction works. Sometimes, however, these imaginative science fiction stories are more closely related to reality. That's why it's often said that "life is better than movies."
Will humanity be "confined" on Earth?
You know, since the beginning of human space exploration, not only on the surface of the earth, but even in the nearby space of space, scientists have been making various attempts.
They built the International Space Station and launched a large number of satellites, not only to make astronomical observations, but also to study how to survive and move in space. However, despite the continuous breakthrough of human science and technology, and the great achievements of human beings in many aspects, it seems that human beings still cannot truly escape from the "cage" of the earth.
The reason for this phenomenon is largely due to the existence of many conditions and factors in the universe that are unfavorable to human beings. Although the "national gate" has been built so large, in many fields, it still cannot meet the dreams of scientists to break through the "barriers" of space. And in that science fiction novel, the protagonist inadvertently circles a smaller universe through various clever settings.
This also surprised people, and some people even said that there seemed to be some similarities between the situation on Earth and in space. In other words, although human beings continue to make progress on the road to conquering space, it is possible that they are going in circles in an infinite circle without knowing it.
People are full of curiosity about various unknown things such as artificial intelligence and space exploration, but in the face of these vast oceans of information, people can't help but feel at a loss and confused. Applied to space exploration, that is, the strength and level of today's scientists are not enough, so that it is similar to a blind man touching an elephant.
Of course, there is no final conclusion on whether humans can truly escape the "trap" of space, but they will not give up on the space dream because of this. Presumably, in the future, more research institutions and scientists in the scientific community will devote themselves to this field, hoping that one day, human beings will be able to truly fly out of the solar system and set foot on a new planet.
3. They may have been quietly watching us, waiting for the right moment.
The universe is infinitely vast, and people may never be able to imagine how big space really is. And for scientists, they are full of the desire for scientific exploration in space. Because of this, they will persevere in exploring the unknown world of space in seemingly hopeless situations.
Human exploration of space began a long time ago, but until today, scientists have not found the end of the universe, but have become more and more aware that "finding answers beyond space" is a very difficult thing.
In this regard, there is a widely discussed science fiction theory about the universe, which is that "humans may not have originated from Earth, but are descendants of aliens from another universe". As soon as this sentence appeared, it quickly sparked heated discussions on the Internet, and many people were curious about this statement and said "it makes sense".
Many people think that the level of science and technology in the past and present is not enough to allow humans to fly out of the solar system, but now it seems that humans have successfully landed on the moon and built the 30-year-old International Space Station. In this regard, some netizens said that perhaps human beings did not evolve by themselves, but were "seeds" planted by other high-dimensional life forms.
In other words, these high-dimensional lifeforms have absolute dominance in other universes, and in order to continue to expand their territory, they spread their "seeds" to different planets, and Earth is part of their layout. If this statement is exaggerated, then some people have also put forward a more reasonable possibility, that is, "the earth is a prison used by high-dimensional aliens to imprison humans".
As soon as this sentence appeared, it sparked a heated discussion about the science fiction novel "Cosmic Prison", and some people even extended this sentence to the ultimate question, that is, "What is the ultimate destination of mankind?" Although the level of human exploration of space is not high today, it does not mean that we will eventually be trapped on this planet.
As many scientists have said, "Mankind's exploration of space has not been easy, but that doesn't mean we can't overcome the odds." Coincidentally, netizens have also said that in the ultimate problem, mankind will usher in a new beginning, when the wonderful imagination of scientists will be restored to reality, and we will no longer be limited to life on earth.
Fourth, the author thinks.
Human beings in the living environment of space, their body genes will mutate, this is only a situation that human beings living on the earth can not imagine, and these astronauts have to always face extremely harsh environmental conditions such as high dose irradiation, microgravity and low atmospheric pressure when working in space.
When human beings are in a state of microgravity, they cannot form stimulation to the bones, and the bone density will be greatly lost, and the bone density of the 50-year-old retired astronauts is compared with the corresponding data of their peers on the earth, and some are even half different, and the extreme working conditions also make their DNA sequences mutated.
These mutations have had some effects on the astronaut's body, such as susceptibility to colds.
In the extremely stimulating environment of the enclosed space, it will have a certain impact on the body, and the influence of these environments will gradually return to normal with the change of time and the external environment, but this process is also inseparable from the help of medicine and technology.
The impact of these mutations on astronauts' bodies also suggests that humans are not well suited to the extreme environments of space for long periods of time, but just as the oceans limit land on land, it is only a matter of time before scientists solve these problems.
For the difficulties of scientists in the universe, human beings cannot understand and cannot imagine, the more the living environment in space is the extreme situation of human beings on the earth, for scientists, the extreme working environment in space such as high-dose irradiation, microgravity, and low atmospheric pressure is just a difficult problem to be solved.
When human beings solve these problems and establish a living environment in space that is very similar to that of human beings on the earth, it also means that human beings will establish their own homes outside the earth and further realize their desire for space exploration.