Interstellar migration 20 18

If one day the solar system is no longer habitable, where should we go? Maybe we will think of the stars in our neighbor's house. Before mastering the speed of light, the nearest star is undoubtedly the first choice, but it does not mean that it is appropriate recently. Unlike a docile attitude, it is a galaxy with a more grumpy temper than its neighbors. She sometimes sends out huge flares that the planetary magnetic field can't bear. If we go to live in neighboring countries, we must not only deal with the flare attack, but also have the ability to avoid bad weather. So from the point of view of survival, it is even less suitable for us than the nearby stars. Farther away. Barnard is the second closest star system to the sun in the universe.

The planet BANARDB DB discovered Europa in 20 18, only 6 light years away from us. We don't know whether Barnard has life for the time being, but we can confirm that Barnard is an ancient star. It sends out fewer flares than its neighbor Barnard. Therefore, although the planet Barndb is cold, it is more suitable for us to live in. Banad stars have a long life span that the sun can't match. Life is undoubtedly the best refuge. At present, Barnard's star system is expected to be close to the solar system for 654.38+0 billion years, which is likely to replace neighboring countries as our new neighbors. So we need interstellar migration in the future, and Barnard star must be a good choice.

This is an unacceptable result for most people, but if the earth is driven out of the solar system and becomes a wandering star, what measures will we take to survive? Can these measures really succeed? If we act quickly, our species can survive for a long time, but we must act quickly. Once the earth starts to move away from the sun, everything will cool down Although it depends largely on the orbit, even if it is conservatively estimated, it will face a snowball-like scene of the earth in a few years, when the surface of the earth will no longer support liquid water and the creatures on the surface will die soon.

But not all hopes have been dashed. The surface of the ocean freezes downward, and the icing on it actually isolates the deep layer. It may take hundreds of thousands of years for the ocean to freeze solids. In other words, some life can still live in the depths of the ocean for thousands of years. Especially where volcanic activity is active, it is warmer. Theoretically, if we have enough time, we can build underwater habitats in the deep sea as a refuge for human beings. Another option is to go underground. On average, every time we go underground 1 km, the temperature will rise by about 25 degrees Celsius. Even if the local clock temperature drops to MINUS 200 degrees, we can only dig a few kilometers to enjoy the relative heat from the center of the earth.