Can we really immigrate to a planet suitable for human survival with the existing technology of mankind?

I'm sorry to tell you that at the current level of human science and technology, if the earth becomes uninhabitable, human beings will not exist. Because humans have no ability to migrate to other planets. And so far, astronomers have not found a planet in the solar system that is as suitable for human survival as the earth, even Mars. Farther away, it will enter interstellar space in light years, which is even more elusive for human beings! Even if such a suitable planet can be found in the future, a few people will be lucky to realize their dream of moving to other planets, because it is technically impossible to realize large-scale interstellar population migration. This is a habitable planet discovered now.

1, Kepler 283c

It is one of two planets orbiting Kepler 283. It is 1.5 times the volume of the earth, and it is 93 days in period of revolution. Although it is closer to its star than the earth is to the sun, it is thought that there may be water on its surface because its star Kepler 283 has a lower temperature than the sun.

2. Gliese 832c

Its period of revolution is only equivalent to 36 days of the Earth, but its similarity with the Earth is 8 1%. The average temperature on this planet is 22 degrees Celsius, slightly higher than that of the Earth, and it is 16 light years away from the Earth. It is likely that there is a rich liquid water source on it. Its volume is at least 5.5 times that of the earth. And its star is a red dwarf star smaller than half of the sun.

3. Gliese 667Cc

This is the "super earth" discovered in 20 1 165438 10, which is 22 light years away from the earth where we live (that is, 2110 billion kilometers) and its volume is 4.5 times that of our earth. And its similarity to the Earth (labeled as "similarity index" in English) is 84%, which is the most similar to the Earth among the extrasolar planets discovered so far.