Immigrate to proxima centauri.

Friends who have seen "Three-body" must remember that the three-body people who came to occupy the earth thousands of miles away in the book, their hometown is located in Centauri, 4.22 light years away.

In "Three-body", Centauri, which is 4.22 light-years away from the Earth, is a chaotic three-star system, and the three stars are in an eternal and unpredictable three-body motion under the interference of mutual gravity, so the three-body civilization living on the planet of one of the stars will often perish because of the chaos of the three stars.

After so many years, a generation of three-body civilization finally developed interstellar civilization in a long dynamic balance, and knew the existence of the earth world and human civilization. ...

But the above content is pure science fiction, and actually it has certain scientific basis, because the nearest star in reality is proxima centauri, which is 4.22 light years away from us, and it really belongs to the triple galaxy Centauri. The only difference is that Samsung Centauri in reality is not chaotic, but they are very stable.

The most important thing is that there is an earth-sized planet near proxima centauri in the real universe, which means that the three-body world is real.

The research results published in the journal Astronomy and Astrophysics show that this exoplanet named proxima b by astronomers is 1. 17 times the mass of the earth, and belongs to the super earth.

It is commendable that proxima centauri is a red dwarf, so its livable zone is closer to the star than the sun, and the newly discovered neighboring star B is just in the livable zone of neighboring star B, but because it is too close to the star, its revolution speed is faster than that of Mercury, and period of revolution has only 1 1.2 earth days, which means it is closer than neighboring star B.

Michelle Mayo, winner of the Nobel Prize in Physics, thinks that although the distance between proxima B and the star is 20 times shorter than that between the earth and the sun (that is, 7.5 million kilometers, while the distance between the earth and the sun is 65.438+0.5 billion kilometers), proxima B is a red dwarf with weak energy, and its mass and volume are not comparable to that of the yellow dwarf of the sun, so it is received by proxima B.

When the mass is similar to that of the earth, and it is also located in the habitable zone of the star, astronomers think that neighboring star B has the condition of retaining liquid water, and they imagine that there is a "habitable circle" near the equator of neighboring star B.

Although proxima b receives 400 times as much X-ray radiation as the earth because it is too close to the star, if most of its water resources are underground, there is likely to be life on proxima b.

While observing the neighboring star B in more detail, astronomers also found the signal from the second celestial body in the data, which also comes from the vicinity of proxima centauri, and its mass is about one third of that of the Earth. It is probably the second planet in proxima centauri's orbit, tentatively named proxima centauri C.

However, this proxima centauri C is not as lucky as its neighbor B, and its smaller mass is 220 million kilometers away from the star, even farther than the distance from the earth to the sun. When proxima centauri is a red dwarf, proxima centauri C cannot receive enough light and heat at such a distance, so proxima centauri C is not located in the livable zone.

As far as the current situation is concerned, the exoplanet neighboring star B is one of the most likely planets to have life. The main goal of the late physicist Hawking's "Breakthrough Shooting Stars" program is to launch an optical sail detector from the Earth to proxima centauri. Although there is no news about this plan after Hawking's death, it is certain that as the closest alien world to the solar system, Proxima B will probably become the first exoplanet for human beings to set foot on in the future.

According to astronomers' monitoring, because the stars in the universe are always moving, proxima centauri will not always be the nearest star to the solar system.

Gliese 44, which is 20.4 light years away from the solar system, is approaching the solar system at the moment. It is estimated that it will reach perihelion in 40,000 years, when it will be only 3.5 light years away from the Earth and will replace proxima centauri as the nearest star to the sun.

Although proxima b is likely to give birth to life, and proxima centauri is the closest star system to the solar system at present, the current scientific and technological level of human civilization can not support human exploration of proxima centauri. Peeping through a telescope every 4.22 light years is the limit that current technology can reach.

In the foreseeable future, the planet that can be developed by large-scale human migration can only be Mars at hand. The former can go back and forth within a week, and the latter can go back and forth within a year.