Can astronauts go home every day?

Not every astronaut can go home every day.

Aerospace activity is a special professional activity, which has the characteristics of special working environment, highly complex professional skills and arduous flight tasks. Such a career requires astronauts not only to have a healthy body and good psychological quality, but also to have a high degree of tolerance and resistance to the space environment, as well as profound knowledge and superb skills. Therefore, all the aerospace departments in the world carefully select astronauts.

The specific content of astronaut selection is determined according to the equipment of spacecraft and space mission, which is generally divided into four aspects.

1, basic conditions

It is the same as pilot selection, but it requires higher academic level and working ability.

2. Medical choice

In addition to following the medical selection conditions of pilots, we should also pay attention to whether there is hidden neuroendocrine system dysfunction in the past medical history. Physical examination should comprehensively and carefully check the cardiovascular system, vestibular function and visual system.

3. Psychological choice

Psychological quality selection is an important aspect of astronaut selection. It is necessary to find out personality, emotional stability, mental state, adaptability and coordination ability with people.

4. Durability selection of special space environment.

In the early days of manned spaceflight, people attached great importance to the selection of special environmental endurance. However, with the continuous development of space technology and the gradual improvement of the internal environment of manned spacecraft, the testing of some special environmental factors, such as noise, vibration and temperature, is no longer the main content of choice. The selection of endurance in special environment mainly includes the tests of weightlessness adaptability and return adaptability, such as vestibular function test, overweight endurance test, low pressure hypoxia endurance test and so on.

After inspecting these items, the medical staff will evaluate the inspection results of individual and comprehensive items and make an overall evaluation.