What do astronauts do in space?

Study the effects of weightlessness on human body.

We can study the reaction ability of human beings in the process of space flight, how to withstand the influence of gravity changes when spacecraft take off, orbit flight and return to the atmosphere, and study the conditions and equipment needed for human beings to survive in the space environment in the medium term.

Through this research, we can better understand the influence of space environment on human beings, develop and utilize space resources, realize long-term space navigation and achieve the purpose of alien immigration.

Do microgravity experiments.

For a long time, astronauts have carried out a large number of scientific experiments on space materials, aiming at studying the properties of materials by using the unique microgravity conditions in space and producing various materials that cannot be produced on earth without gravity interference.

The development of aerospace materials processing and technology is the inevitable result of manned space development. Since the realization of manned space flight, astronauts have studied the physical laws of material processing under the conditions of microgravity in space and produced a large number of new materials. At the same time, the research of space material processing technology has also developed rapidly.

Biotechnology and life science experiments.

For decades, astronauts have conducted a series of biological experiments in space, mainly about biomass, energy cycle and regulation. Using microgravity to promote the study of life process, and how microgravity environment affects the formation, function and behavior of life on earth.

Radiobiological study on biological damage and protection in space high-energy environment. In addition, the tissue culture experiment of organisms is also used for in vitro cell culture of organisms that cannot be used for various physiological studies.