Do astronauts really only choose married and educated people?
In fact, this has always been a lie, because there is no such regulation in the selection of astronauts in any country, but in fact, you should inquire about the marriage and childbirth of astronauts in various countries, and most of them have already given birth. Why? Since they are not required to get married and have children, why do most of them get married and have children?
Astronaut selection criteria
Marriage and men are not hard indicators for astronauts, but they actually exist. In fact, this is also very understandable, because modern spacecraft have high requirements for astronauts, and it is almost an unwritten rule to choose a needle in a haystack from ordinary people, so it is an unwritten rule to choose from fighter pilots!
And they must be experienced pilots who have flown for thousands of hours, so their study, training and service experience are basically married when they choose astronauts! So it is not surprising that most of the astronauts you see are married, but you may be curious about the equality between men and women. Why are there so few female astronauts?
It's not really discrimination against women. Astronauts may perform tasks under extreme conditions, so the requirements for scars and wounds are extremely high. Female astronauts can reach the standard of natural childbirth after marriage, and there is no knife edge. It is estimated that a large number can be brushed off, so it is normal to have a relatively small amount.
Whether or not to have children is not a hard indicator.
You only heard about the harsh conditions in space, but ignored the protection and radiation dose of the spacecraft itself. Therefore, as an astronaut, it is not a long-term mission in space. Therefore, there is no hard and fast requirement for this indicator. Of course, if an astronaut is educated, he will have no worries!
Gagarin, the first astronaut, is said to have gone into space without getting married? In fact, Gagarin attended the First Chekalov Air Force Pilot School in 1957 and officially joined the army. In the same year, Gagarin married valentina. On the same day of graduation, Gagarin was elected as an astronaut with 196 1 when he boarded the Dongfang-1 spacecraft and took off from the Baikonur space launch site.
So Gagarin got married!
Is it true that valentina went into space without marriage and childbirth? Vladimirovna？ Tereshkova, a hero of the former Soviet Union, is the first female astronaut in the world! 1On June 6th, 963, tereshkova took off in the Dongfang VI spacecraft, becoming the first woman to go into space. And the only woman to fly a spaceship independently to complete space flight! Her mission time in space is three days!
Valentina, June 22nd 1963? Vladimirovna？ Tereshkova became a hero of the Soviet Union. 1963165438+1October 3, she and astronaut Adrian? Nikolayev got married in Moscow. Khrushchev married senior officials such as the leader of the space program! 1June 8, 964, my daughter yelena? Andreyanov na? Nikolayeva was born. This is the first person whose parents are astronauts, very healthy!
So it's just valentina? Vladimirovna？ Tereshkova was not married when he became an astronaut.
Why was Liu Yang chosen as an astronaut?
Liu Yang/KLOC-0 joined the army in August, 1997, and in May, 200/KLOC-0, he joined the China * * * Production Party, holding the rank of Colonel in the China People's Liberation Army. She is the seventh batch of female pilots in the Air Force. Before being selected as an astronaut, she recorded a safe flight time of 1680 hours and took the Shenzhou-9 spacecraft on June 20 12.
Liu Yang's husband is also a pilot. It can be said that this family is excellent, both sides can understand each other's career choices, and Liu Yang's resume is also excellent. So it may be very natural for her to be selected as an astronaut and become the first female astronaut in China!
On June 5, 20 12, Liu Yang, Jing Haipeng and Liu Wang carried out the manned rendezvous and docking mission between Shenzhou-9 and Tiangong-1, and returned to the ground after 13 days! Liu Yang got married before the mission, but she didn't have children. At the beginning of 20 15, Liu Yang said that she had become a mother!
The effects of radiation from long-term space station work on human body are still under study.
So there is no contradiction between being an astronaut and having a baby! The physiological indexes of astronauts who have been in space for a long time will become the research object. More interestingly, NASA astronaut Scott has a twin brother on the ground, so their identical twins have become the research object of the medical community.
Scott has been working on the International Space Station for 342 days, nearly a year. Of course, he is not the astronaut who works the longest, but he has a considerable brother! Papers published in Science Show magazine:? NASA Twin Study? The part about DNA variation described in the paper:? It was found that most of the genetic changes (9 1.3%) in the cells returned to normal within 6 months after the flight of the space station? .
This means that 9 1.3% of the altered genes have been recovered. Of course, the remaining 8.7% are not all human genes, because the genetic difference between humans and gorillas is only about 1%, so many friends misunderstand that 8.7% of genes have been changed by space station radiation, so this is incorrect.
The paper in Science magazine did not show the relevant consequences, so we need to continue our research, because Scott's gene is still repairing itself!