Are we really going to emigrate to other planets?

Have you ever thought about where human beings can go besides the earth? Are there any other planets suitable for human survival in the vast universe?

In recent years, with the increase of greenhouse effect, the climate has become more and more abnormal. Hawking, a famous physicist, once admitted before his death that if we continue to let the greenhouse effect go unchecked, mankind will leave the earth in less than a hundred years. This sounds a bit sensational, but it is a problem that human beings must face. If human beings want to emigrate, according to the current level of human civilization, they can only choose other planets in the solar system, and Mars is undoubtedly the best choice for human beings. But Mars has no magnetic field and can't resist the strong solar wind, and the oxygen content on Mars is not enough for human survival, so the amount of work to transform Mars is very large.

In order to find exoplanets suitable for human survival, NASA launched the kepler mission in 2009 to observe exoplanets. After two years of observation, a terrestrial planet very similar to Earth was finally found in the Cygnus star Kepler 22, 600 light years away. It's called Kepler 22B. Up to now, more than 1000 exoplanets have been discovered in kepler mission, among which Kepler 22B is the most suitable planet for human habitation. After that, scientists conducted in-depth research on it. If humans want to leave the earth in the future, Kepler 22B is undoubtedly a good choice. Why is Kepler 22B the most suitable planet for human survival? First of all, Kepler 22B is about 2.4 times the size of the earth. Like the earth, his home star Kepler 22 is a sun-like star. According to the data observed in Kepler's mission, scientists speculate that Kepler 22B, like the earth, has an atmosphere and is a physical planet. It is very likely that Kepler 22b has bred oceans and abundant water resources, which can provide a strong guarantee for human survival.

Besides, Kepler 22B has a 95% chance of being located in the habitable zone of its home star. That is to say, if Kepler 22B has a greenhouse effect similar to that caused by the earth's atmosphere, its surface temperature is about 2 1, and there are four seasons. There are about 290 Earth Days in period of revolution, and the similarity with the Earth is as high as 83%. If human beings are interstellar immigrants, Kepler 22B may become a new home more suitable for human survival than the earth as long as it is transformed. It is worth noting that Kepler 22B is 2.4 times larger than the earth, which can greatly alleviate the housing pressure and realize one suite per capita. In fact, in addition to Kepler 22B, scientists have discovered another super earth-Kepler 452B, which is more than 98% similar to the Earth, but as high as 1400 light-years away from the Earth. So far, it is impossible to confirm whether it is a physical planet. So Kepler 22B is still the most suitable planet for human migration. Unfortunately, with the current level of human civilization, it is unrealistic for Kepler 22B to realize immigration in a short time. After all, it's 600 light years away. At present, the fastest man-made detector is the "New Vision" detector flying over Pluto, with the speed of 15.5km/s, and it takes 1 1.6 million years to reach Kepler 22B at this speed. Even if humans build a light-speed spaceship, it will take at least 600 years to reach Kepler 22B.

It is difficult for human beings to immigrate to Kepler 22B in a short time, but it is not impossible. First of all, mankind should realize controlled nuclear fusion as soon as possible, meet the energy supply needed by mankind in a short time, and then realize the first-class civilization. Secondly, the wormhole must be found within 100 years. Of course, the wormhole should not be too far away from the earth, and then the operating mechanism inside the wormhole should be studied and mastered. Of course, if humans really find wormholes and can use them freely, then a small Kepler 22B may not be considered by humans. But it is worth noting that Kepler 22B is about 65.438+0.5 billion years older than the Earth. What is this concept? When life on the earth just started, Kepler 22B may have entered the era of BIGBANG, and the Kepler 22B we observed was in the state of 600 light years ago. It's quite possible that there are advanced civilizations on it. Assuming that humans can reach Kepler 22B, they are likely to have a war with alien civilizations. As far as the current level of human civilization is concerned, there is no doubt that there is a great possibility of advanced civilization in the constellation Cygnus, especially from the signal of Cygnus some time ago. Hawking has repeatedly warned mankind not to respond to any signal from the universe. If human beings really want to emigrate, they should also be prepared for conflicts with alien civilizations.

But then again, we can also choose to protect the earth from now on, save energy and reduce emissions, reduce the impact of the greenhouse effect on the global climate, and cherish this home that has nurtured human civilization. In this way, we can live on the earth all the time without taking the risk of interstellar migration. What choice will you make in front of the screen at this moment? Welcome to say your choice in the comments section.