Can humans live in space?

With current technology, space is not suitable for human habitation for the time being. There is no oxygen in space, and the temperature is extremely low. When an object is irradiated by the sun, the temperature will rise rapidly, which is beyond human capacity. So in such an environment, people can't survive.

After long-term research, scientists have found that the special space environment has a great influence on the human body, and at this stage, human beings cannot survive in space. However, with the development of space technology and the improvement of understanding of space environment and technology, some problems will be solved step by step, and the dream of human beings moving into space will finally come true.

space

Space is a very high sky. The International Air Federation in Geneva, Switzerland defines the boundary between the atmosphere and space: the height from the earth's sea level 100 km (about 62 miles) is the boundary, which is called Carmen Line. Carmen Line is named after American scientist Theodore von Kármán.

Geophysicists divide atmospheric space (or air space) into five layers. Troposphere, sea level to 10 km. There is dense air in the troposphere, which is called dense atmosphere. The dense atmosphere becomes thinner and thinner with the increase of height. Stratosphere,10-40km.

Intermediate layer, 40~80 kilometers. 80-370 km is the thermosphere, which belongs to the lower part of the ionosphere. The outer atmosphere, more than 370 kilometers of space, belongs to the upper part of the ionosphere. From the surface of the earth to the height of 100 km, with the increase of height, there is less and less air. About 75% of the atmosphere above the earth exists in the troposphere and 97% is below the stratosphere.