According to the China Manned Space Engineering Office, the crew of Shenzhou 14 will return to the Dongfeng landing site today. These days, the three astronauts are packing their "baggage" to carry back. In addition to their personal belongings, they also carry a batch of medical science experiment samples, which will provide an important basis for the study of human long-term space life.
This batch of experimental samples, mainly body fluid and cytological samples, brought back by the Shenzhou 14 astronauts, contains a total of more than 80 experimental samples in five categories, enabling the ground research team to better understand the changes in human life in space.
Li Yinghui, Researcher of China Astronaut Research and Training Center: We brought back (astronauts) 'blood, urine and saliva. Because blood is an on orbit process, it allows us to study people's adaptability to the environment from a deeper level, from the level of cell, molecule and gene, which also enables our country to have our own on orbit environmental adaptability genetic resource pool. It is of great significance not only for the formulation of our subsequent health protection measures, but also for the research of our aerospace medicine, as well as for human beings to understand themselves and respond to the environment.
During the orbital period of Shenzhou XIV, the Mengtian experimental module was ushered in. With the low-temperature storage equipment carried in the Mengtian experimental module, the astronauts carried out the preservation of living cells and in orbit experiments for the first time, and these samples will also return with the astronauts.
Li Yinghui, Researcher of China Astronaut Research and Training Center: These cells went up with the Tianzhou V, and after 18 days of space life in orbit, they returned together with the astronauts, so that we can see the whole process of cells from takeoff to return, and the adaptation of cells to the environment.
In addition to sampling, astronauts themselves are also key objects of aerospace medical science research. Before returning, the Shenzhou XIV astronauts are also exercising to combat the gravity impact during and after returning.
Li Yinghui, Researcher of China Astronaut Research and Training Center: Physical indicators have always been our concern, mainly from the physiological and cardiovascular aspects. At present, their physical condition is good, because the on track crew has always been highly self-discipline, and they exercise well every time. With the Mengtian cabin, they actively use resistance (equipment) to exercise, and the load of resistance equipment exercise is greater, Exercise is more comprehensive.
