Human beings are the only intelligent life on earth, born millions of years ago. After the birth of mankind, through a long evolutionary evolution, he entered the era of civilization, and after tens of thousands of years of development, human civilization finally embarked on the path of technological development hundreds of years ago.
The emergence of science and technology has brought a huge leap to human civilization. It not only allows us to have more knowledge of the world, but also allows mankind to finally realize the dream of flying out of the earth and begin to explore the universe.
When we step out of the earth and see the vast universe, an unavoidable question arises, that is, do extraterrestrial life and extraterrestrial civilization exist? Although more than half a century has passed since humans have searched for extraterrestrial life, and no discovery has been made yet, basically all scientists believe that extraterrestrial life exists, and it is unlikely that the universe has only one life planet, the Earth.
While scientists are continuously searching for possible extraterrestrial life in the solar system, they have also focused on the wider interstellar space outside the solar system. It should be understood that the solar system is only one of the hundreds of billions of star systems with the Milky Way coefficient, and different star systems will have planets, and there may be terrestrial planets very similar to the earth.
Although we don’t know what form of alien life exists and what kind of planetary environment it needs, we use the earth as a template. All terrestrial planets that are very similar to the earth are more likely to have life. So when scientists search for exoplanets through astronomical telescopes, the focus is still on those terrestrial planets that are very similar to the Earth.
Since the distance of the universe is based on light-years, the average distance between stars is more than a few light-years, and human technology is still very limited. Therefore, when we search for exoplanets, we mainly focus on the areas near the solar system. Because of the exoplanets that are closer to the solar system, we can observe more data, and searching for planets near the solar system can also be useful for the future. Mankind went out of the solar system to prepare for field exploration.
The nearest galaxy to the solar system is the Proxima Centauri, which is about 4.2 light-years away from the Earth. It is a three-star system composed of Proxima Centauri and Alpha Centauri. In other words, the neighboring galaxy has three stars co-existing, and the trisolaran civilization in the science fiction novel “The Trisolaris” came from here.
The Samsung system is far less stable than a single-star system like the solar system. In “Three-Body”, the living environment of the Trisolaran is extremely harsh, and it is forced to evolve all kinds of incredible methods to avoid the chaotic era. In reality, the environment of the neighboring galaxy is very similar to the description in the novel. The neighboring star often has energy bursts, blowing a lot of hot solar wind into the nearby space.
If our sun also bursts with energy like Proxima Centauri, then the environment of the earth will be much worse than it is now, and it may not be suitable for survival at all. So are there terrestrial planets near Proxima Centauri? The answer is yes. Scientists discovered Proxima B at a distance of 7.5 million kilometers from Proxima Centauri.
The mass of Proxima b is about 1.3 times the mass of the earth, and its revolution period is about 11.2 earth days. On the whole, Proxima b is in the habitable zone of the current star system, just like the earth. If Proxima Centauri is replaced by the sun, then Proxima B is likely to be a beautiful ecological star like the Earth.
However, because Proxima Galaxy is a three-star system, Proxima’s temperament is very irritable and there are often energy bursts. Therefore, the environment of Proxima B is very different from that of the earth. The radiation on the surface is seriously exceeding the standard. According to the prediction of scientists, Proxima The surface radiation of star b is at least 400 times that of the earth.
In addition to the planet Proxima B, there may also be a super-Earth in the Proxima galaxy. Scientists named it Proxima c. Whether Proxima C is determined to exist, there is still no definite answer. This is generated by scientists from the University of Crete and the Turin Observatory in Italy based on the high-precision search instrument provided by the European Southern Observatory, by comparing a certain angle and period of the neighboring star A slight swing, guessing that there might be such a super-Earth.
If Proxima C exists, its distance is 1.5 times the distance between the earth and the sun, its mass is about six times that of the earth, and it is likely to be an earth-like planet. In addition, the mass of Proxima Centauri itself is smaller than that of the sun, so Proxima C will be a frozen planet, and its surface temperature may be as low as minus 234 degrees Celsius.
Of course, the existence of Proxima C needs more observational data. Perhaps in the near future, scientists will be able to observe more data to truly discover this super-Earth. So are there only these two planets in a three-star system like the Proxima Centauri? I’m afraid more than that.
In the universe, binary star systems and three-star systems are relatively common, but single-star systems like the solar system are relatively rare. If there are only two planets in a three-star system, it seems a bit unreasonable. Therefore, there is a high probability that other planets will exist from neighboring galaxies. Even in the habitable zone, there may be terrestrial planets, but because of our Observation technology is limited and it is impossible to find them.
Humans currently observe and search for exoplanets, mainly through the transit method, that is, through stellar light and darkness and other changes, and to determine whether there are planets around them.
As for a star with a larger mass, because of its higher energy level, it is easier for us to observe some of its changes, so as to determine whether there are planets around it.
However, Proxima Centauri is a relatively faint star. Although there are often energy bursts, it has a smaller mass and a lower radiation energy level. Although it is relatively close to the earth, it is not easy to find the hidden planets around it.
Even so, the neighboring galaxy is still a galaxy that scientists have focused on observing and studying, because it is the closest we are, and it is also the most promising target for human beings to be able to detect on the spot in the future. Once humans achieve controllable nuclear fusion in the future, it will be possible to achieve preliminary subluminal flight technology. At that time, humans will have the ability to initially leave the solar system.
In the vast interstellar space outside the solar system, the range we can detect is also very limited, and the nearest neighboring galaxy to the earth will undoubtedly become the first extra-system galaxy to be explored by mankind. As long as our probe or spacecraft can walk into the neighboring galaxy, all the structure and layout of this galaxy will be known to us.
Although from a scientific point of view, even if there are terrestrial planets in the habitable zone of the neighboring galaxy, the probability of life and even civilization is very low, but we still cannot completely rule out the possibility of trisolaran civilization. You must know that life still exists in some very harsh environments on the earth, which shows that life is very capable of adapting to the environment. Perhaps it is not impossible that a very powerful civilization will be born in such a bad galaxy as the Proxima Centauri.