Do you know anything about ＂business trip＂ in space？ Why are astronauts in groups of three？
On April 12, 1961, the world’s first manned spacecraft "Dongfang No.1" set sail at the Baikonur launch center in the Soviet Union. GagarinFor the first time, the feat of human beings traveling in space was realized.
Time has come to 2022, and it has been 61 years since mankind first broke through the atmosphere and came to space. The progress of science and technology has brought a brand-new way of life, and cutting-edge technology has promoted human exploration of the universe.In the 11 years since Shenzhou VIII, the Shenzhou series spacecraft have successfully carried out 10 missions.
Overview of China’s "Shenzhou" manned mission in recent years
1. Shenzhou XII manned mission
Three astronauts in the crew: Nie Haisheng, Liu Boming and Tang Hongbo.
2. Shenzhou XIII manned mission
Three astronauts in the crew: Zhai Zhigang, Wang Yaping and Ye Guangfu.
3. Shenzhou XIV manned mission
Three astronauts in the crew: Chen Dong, Liu Yang and Cai Xuzhe.
In November this year, the Shenzhou XV manned spacecraft will also send three astronauts to the space station.They will have a 10-day handover with three astronauts, including Chen Dong, who arrived early.
△ Shenzhou 14 manned mission astronaut expedition ceremony
Seeing this, I believe everyone has some doubts:
"Why space in recent years ‘ Business trip ’ Always a trio? "
"Why are astronauts mostly 2 men and 1 woman?" … …
These questions are answered by us here.
1. In recent years, why are the astronauts "traveling" to China Space Station in groups of three?
In response to this problem, Tao Jianzhong, a senior aerospace expert and former researcher of Shanghai Institute of Aerospace Systems Engineering, solved the problem for everyone.
"It is not easy for the Shenzhou manned spacecraft to go to the China Space Station. It can carry up to three people.From the cost point of view, it can achieve the maximum cost performance.The division of labor of the three astronauts is also different, and they need to complete different tasks and scientific experiments. Three people also have a partner with each other, otherwise it will be too lonely. "
Tao Jianzhong introduced that this is also an international practice. The Russian Soyuz spacecraft can carry up to three people, and the American manned dragon spacecraft can carry up to four people. They also adopted a "full capacity" when they went to the International Space Station.
2. Why are astronauts mostly 2 men and 1 woman?
Tao Jianzhong said: "Women are the mainstay of human society ‘ Half the sky ’ There are dozens of female astronauts in countries around the world, and there are also female astronauts in China’s space station. "
For a long time, the number of female astronauts is less than that of male astronauts, mainly becauseThe threshold for women to bear cosmic ray radiation is relatively low, but female astronauts are more careful when completing scientific experiments and other tasks.It is conducive to giving full play to women’s unique advantages in the long space mission.
It is reported that the United States, China and Russia are developing a new generation of manned spacecraft that can carry 6-7 people. In the future, it will be more lively for astronauts to go to space on business trips together.