Women in space
Women in space have been present and active since the beginning of human spaceflight. The first woman flew to space in 1963, two years after the first person, but it was not until almost 20 years later that more would be sent. Since then a considerable number of women from a range of countries have worked in space, though overall women are still significantly less often chosen to go to space than men and represent by 2020 only 10% of all astronauts who have been to space.
By 2021 most of the 65 women who have been to space, have been United States citizens, with missions on the Space Shuttle and on the International Space Station. Other countries have had one (United Kingdom, France, South Korea, Italy) or two (USSR, Canada, Japan, Russia, China) women citizens in space, taking part in missions of programs with human spaceflight capability. Additionally one dual Iranian-US woman citizen has participated as tourist on an US mission.
Women face many of the same physical and psychological difficulties of spaceflight as men. Scientific studies generally show no particular adverse effect from short space missions. It has even been concluded that women might be better suited for longer space missions. The main obstacle for women to go to space remains gender discrimination.
Women in human spaceflight programs
Human spaceflight began in the late 1950s and early 1960s and early research on possible crewed missions to space studied the expected effects of space on humans, also considering women. The research showed that women might even be suited better for space missions due to a range of reasons.
In the competition between the Soviet Union (USSR) and the United States known as the Space Race both nations chose their first space pilots (known as cosmonauts in the USSR and astronauts in the US) for their programs from the ranks of their military high-speed jet test pilots, who were exclusively men.
The first woman to fly to space became Valentina Tereshkova aboard Vostok 6 on June 16th 1963, but neither the USSR did send another in the following 20 years until Svetlana Savitskaya in 1982, the second woman, nor the US until 1983 with its first woman Sally Ride.
Ever since this set of women a range of women have been to space, particularly with the US program, starting with Ride's NASA Astronaut Group 8. Despite this women still represent only about 10% of all people who have gone to space, being less chosen and enabled.
Since all astronauts who have gone to the Moon were men there is yet a woman to go as the first astronaut to return to the Moon, a goal that the US Artemis program is pursueing.
Soviet Union (USSR)
The USSR director of cosmonaut training Nikolai Kamanin started in 1961 to lobby for having women as cosmonauts after being inspired by repeated questions by the press about women as cosmonauts. Subsequently Kamanin crucially gained space program leader Sergey Korolev as a supporter, getting approval six months later for women cosmonauts. During a visit to the US in 1962 Kamanin got to know Jerrie Cobb of the then rejected "Mercury 13", her being consultant to the NASA space program since 1961 and testifying in July 1962 at Congress about the positive results of "Mercury 13" and on gender discrimination. At one point Kamanin noted in his diary "We cannot allow that the first woman in space will be American. This would be an insult to the patriotic feelings of Soviet women." To increase the odds of sending a Soviet woman into space first, the women cosmonauts began their training before the men.
Valentina Tereshkova was the only one of the five to fly into space in Vostok 6 in June 1963, with Irina Solovyova as her first backup. Kamanin framed her as "Gagarin in a skirt" and Soviet Premier Nikita Khrushchev was happy with the propaganda potential of her selection, since she was the daughter of a collective farm worker who died in the Winter War, and confirmed her selection. Five months after her flight, Tereshkova married Vostok 3 cosmonaut Andriyan Nikolayev on November 3, 1963 at the Moscow Wedding Palace, with Khrushchev presiding at the wedding party together with top government and space program leaders. Kamanin described the marriage as "probably useful for politics and science". On 8 June 1964, nearly one year after her space flight, she gave birth to their daughter Elena Andrianovna Nikolaeva-Tereshkova, the first person with both a mother and father who had traveled into space.
Kamanin hoped to fly two other women on the Voskhod 3 and 4 flights, but these were canceled in 1965, leaving the women with Soviet Air Force officer commissions.
In 1978 Tereshkova and Tatyana Kuznetsova pushed for a new cosmonaut program for women, but only in 1980 did the USSR start a second training of women cosmonauts, sending the world's second woman, Svetlana Savitskaya, in 1982 to space on the Soyuz T-7. Subsequently she also became the first woman to fly to space twice, on the Soyuz T-12 mission on July 25, 1984, and the first woman to walk in space (extravehicular activity, EVA) outside the Salyut 7 space station on that mission.
After the first twelve US women, the third and last woman launched by the USSR was Helen Sharman in 1991, the first woman from Western Europe and the first who went to the space station Mir. She is the first and only United Kingdom woman citizen to date, making the United Kingdom the first of two countries (the other being South Korea) to have a woman as its first person to go to space. Allthough, she was not sent by the United Kingdom government since she was privately funded by Project Juno, the second person and first woman to be funded privately to go to space.
In 1959 a group of thirteen female US pilots, dubbed by the American press as the "Mercury 13", wanted the chance to become astronauts and took, supervised by NASA staff, the same medical tests as the men, performing the same and even better. Funded privately (e.g. by aviation pioneer Jacqueline Cochran) it was no government program and the idea of female astronauts faced a great deal of resistance in the US government, military command, and NASA, leaving these women no chance of becoming astronauts. Though Jerrie Cobb of the "Mercury 13" became consultant to the NASA space program in 1961 and testifyied in July 1962 at Congress about the positive results of "Mercury 13" and on gender discrimination.
By 1976 it was decided that the NASA Astronaut Group 8 would include women and persons of minorities. Actor Nichelle Nichols, who played Nyota Uhura in the Star Trek franchise, had been using her public standing to speak for women and people of color and against their exclusion from the human space program of the US. Subsequently NASA reacted by employing her to assist in finding candidates for Group 8 and its future Space Shuttle program. Nichols successfully recruited the first people of color and women into the US space program. One of the recruits was mission specialist Sally Ride, who in 1983 became the first US woman to fly in space, in the seventh Space Shuttle mission., and the third woman to fly in space. Since then more than 50 of the several hundred American astronauts who have entered space have been women. Most served on the various Space Shuttle flights from 1983 to 2011.
Judith Resnik was the second American woman in space and the fourth woman overall in space, as a mission specialist on the maiden voyage of Discovery, from August to September 1984, dying less than a year and a half later when the Space Shuttle Challenger was destroyed.
The first US woman to perform Extravehicular activity (EVA) was Kathryn D. Sullivan on the STS-41-G, which launched on October 11, 1984. Mae Jemison became the first woman of color in space in 1992. The first woman to pilot the Space Shuttle was Eileen Collins who piloted Discovery on STS-63 (in 1995) and Atlantis on STS-84, and became the first female Shuttle commander on STS-93. The first woman on an ISS expedition crew was Susan Helms on Expedition 2, which lasted from March 2001 until August 2001.
In 2007 Peggy Whitson became the first woman to command the International Space Station. The 2013 NASA Astronaut Group 21 was the first astronaut class with an equal amount of women, with the subsequent and current Group 22 having a lower number again. On October 18, 2019, the first all female spacewalk was conducted by Jessica Meir and Christina Koch.
Only 12 humans, all men, have ever walked on the Moon; all human Moon missions were part of the U.S. Apollo program between 1969 and 1972. No woman has ever walked on the Moon. In 2020, NASA's communication director reported that NASA planned to land astronauts on the Moon, including possibly a woman astronaut or astronauts, as part of the U.S. Artemis program. Of the 18 candidates in the Artemis program, nine are women: Nicole Aunapu Mann, Kayla Barron, Christina Koch, Kate Rubins, Stephanie Wilson, Jessica Meir, Jasmin Moghbeli, Anne McClain and Jessica Watkins. No astronaut has yet been assigned to any specific Artemis mission.
In addition to US citizens, US rockets have launched international astronauts. Roberta Bondar (in 1992) and Julie Payette (in 1999 and 2009) from Canada, as well as Chiaki Mukai (in 1994 and 1998) and Naoko Yamazaki (in 2010) of Japan flew as part of the US space program.
The human spaceflight program of the Russian Federation called Roscosmos is the successor to the Soviet program and has sofar hosted two women. Still chosen as cosmonaut during Soviet times Yelena V. Kondakova became in 1994 the first woman cosmonaut for the Russian Federation, and the first woman to travel for both the Soyuz program and on the Space Shuttle. Twenty years later Yelena Serova became the second of the Russian Federation, and first Russian woman cosmonaut to visit the International Space Station on September 26, 2014.
Russia’s only current woman cosmonaut, Anna Kikina, was admitted to the Russian cosmonaut corps in 2012. In 2019 Roscosmos announced changes to their space suits to accommodate women and announced in 2020 that Kikina was selected for a flight to the International Space Station in 2022. 
The Russian space program has also hosted international cosmonauts. Claudie Haigneré from France (1996 and 2001), Anousheh Ansari from Iran (2006), Yi So-yeon of South Korea (2008) and Samantha Cristoforetti from Italy (2014).
Another Canadian woman astronaut is Julie Payette from Montreal. Payette was part of the crew of STS-96, on the Space Shuttle Discovery from May 27 to June 6, 1999. During the mission, the crew performed the first manual docking of the Shuttle to the International Space Station, and delivered four tons of logistics and supplies to the station. On Endeavour in 2009 for STS-127, Payette served as a mission specialist. Her main responsibility was to operate the Canadarm robotic arm from the space station. Payette was sworn in as the 29th Governor-General of Canada on October 2, 2017.
In July 2017, Dr. Jennifer Sidey-Gibbons was selected by the Canadian Space Agency to receive astronaut training at Johnson Space Center. She completed the two-year Astronaut Candidate Training Program and obtained the official title of astronaut in January 2020.
In 1985, Chiaki Mukai was selected as one of three Japanese Payload Specialist candidates for the First Material Processing Test (Spacelab-J) that flew aboard STS-47 in 1992. She also served as a back-up payload specialist for the Neurolab (STS-90) mission. Mukai has logged over 566 hours in space. She flew aboard STS-65 in 1994 and STS-95 in 1998. She is the first Japanese and Asian woman to fly in space, and the first Japanese citizen to fly twice.
Naoko Yamazaki became the second Japanese woman to fly into space with her launch on April 5, 2010. Yamazaki entered space on the shuttle Discovery as part of mission STS-131. She returned to Earth on April 20, 2010. Yamazaki worked on ISS hardware development projects in the 1990s. She is an aerospace engineer and also holds a master's degree in that field. She was selected for astronaut training in 1999 and was certified by 2001. She was a mission specialist on her 2010 space shuttle flight, and spent 362 hours in space. Yamazaki worked on robotics and transitioned through the reorganization of Japanese spaceflight organization in 2003 when NASDA (National Space Development Agency) merged with ISAS (Institute of Space and Astronautical Science) and NAL (National Aerospace Laboratory of Japan). The new organization was called JAXA (Japan Aerospace Exploration Agency).
European Space Agency (ESA)
The first Western European woman and British citizen flying to space was Helen Sharman in 1991, but she was not sent by a state funded human spaceflight program, but as privately funded space flight participant of the Project Juno on a Soviet mission.
The first Western European and French woman sent by a state space agency CNES and ESA was Claudie Haigneré in 1996. Since then the only other woman sent by a European agency ASI and ESA has been Samantha Cristoforetti in 2014, 18 years after Haigneré. Cristoforetti is the first Italian woman going to space.
In 2012, the Chinese space program sent their first woman to space.
China's first female astronaut candidates, chosen in 2010 from the ranks of fighter pilots, were required to be married mothers. The Chinese stated that married women were "more physically and psychologically mature" and that the rule that they had have had children was because of concerns that spaceflight would harm their reproductive organs (including unreleased ova). The unknown nature of the effects of spaceflight on women was also noted. However, the director of the China Astronaut Centre has stated that marriage is a preference but not a strict limitation. Part of why they were so strict was because it was their first astronaut selection and they were trying be "extra cautious". China's first woman astronaut, Liu Yang, was married but had no children at the time of her flight in June 2012.
Wang Yaping became the second Chinese female astronaut as a member of the Shenzhou 10 spaceship crew, which orbited the Earth in June 2013, and of the Tiangong-1 orbiting space station with which it docked.
Women space tourists
After the second privately co-funded person overall and first woman Helen Sharman, Anousheh Ansari was the fourth overall privately funded space traveler, the first Iranian woman citizen (dual citizenship with the US) to go to space, as well as the first privately funded woman to fly to the International Space Station. She flew to the station in 2006 on the Soyuz TMA-9 spacecraft. Her mission launched from the Baikonur Cosmodrome on September 18, 2006. Soyuz TMA-9 transported two-thirds of ISS Expedition 14 to the space station along with Ansari. Ansari performed several experiments on behalf of the European Space Agency.
Space flight participant
In 2019 Beth Moses became the first commercial astronaut woman to go to space (sub-orbital). On 16 September 2021, Sian Proctor and Hayley Arceneaux became the first female commercial astronauts to go into orbit on board Inspiration4
Payload Specialist Christa McAuliffe and mission specialist Judith Resnik became the first women to die on a space mission when the Space Shuttle Challenger exploded less than 2 minutes after launch with the loss of all hands.
Space programs allowed women generally only well into the space age, with NASA opening its space program in 1976. When Sally Ride became in 1983 the first female US astronaut to go into space, the press asked her questions about her reproductive organs and whether she would cry if things went wrong on the job.
Women with children have also been faced with questions about how they would compare to traditional expectations of motherhood. Shannon Lucid, one of the first group of female US astronauts, remembers questions by the press on how her children would handle her being a mother in space. Women are often expected to be the ones mainly responsible for child-rearing, which can impact their career.
Physical effects of space on women
Female astronauts are subject to the same general physical effects of space travel as men. These include physiological changes due to weightlessness such as loss of bone and muscle mass, health threats from cosmic rays, dangers due to vacuum and temperature, and psychological stress.
Astronaut clothing for men has been based on technology used to make bras, and since women have been sent to space, the previously men focused clothing has been reconsidered addressing the issues and needs for clothing like space suits for extravehicular activity (EVA) and bras, e.g. for exercise in micro-g environments. Low number of produced smaller sized space suits has been hindering women astronauts to do EVAs because of a lack of fitting suits.
Furthermore space toilet designs did not have women in mind, until October 2020 when the first toilet with better design for women (as well as men) was delivered to the ISS.
Radiation and uterine and breast cancer
Both men and women are affected by radiation. Massive particles are a concern for astronauts outside the earth's magnetic field who receive solar particles from solar proton events (SPE) and galactic cosmic rays from cosmic sources. These high-energy charged nuclei are blocked by Earth's magnetic field but pose a major health concern for astronauts traveling to the moon and to any distant location beyond the earth orbit. Evidence indicates past solar particle event (SPE) radiation levels that would have been lethal for unprotected astronauts.
However, due to the currently used risk models for endometrial, ovarian and breast cancer, women at NASA can currently only spend half as much time on missions as men, which limits their career options compared to men.
German standards for pregnant woman set a limit of 50 mSv/year for the gonads (ovaries) and uterus, and 150 mSv/year for the breasts.
Astronauts on Apollo and Skylab missions received on average 1.2 mSv/day and 1.4 mSv/day respectively. Exposures on the ISS average 0.4 mSv per day (150 mSv per year), although frequent crew rotations minimize risk to individuals. A trip to Mars with current technology might be related to measurements by the Mars Science Laboratory which for a 180-day journey estimated an exposure approximately 300 mSv, which would be equivalent of 24 CAT scans or "15 times an annual radiation limit for a worker in a nuclear power plant".
A study published in 2005 in the International Journal of Impotence Research reported that short-duration missions (no longer than nine days) did not affect "the ability of astronauts to conceive and bear healthy children to term." In another experiment, the frog Xenopus laevis successfully ovulated in space.
For fetus radiation increases the risk of childhood cancers. Additionally children of female astronauts could be sterile if the astronaut were exposed to too much ionizing radiation during the later stages of a pregnancy. Ionizing radiation may destroy the egg cells of a female fetus inside a pregnant woman, rendering the offspring infertile even when grown.
While no human had gestated in space as of 2003[update], scientists have conducted experiments on non-human mammalian gestation. Space missions that have studied "reproducing and growing mammals" include Kosmos 1129 and 1154, as the Shuttle missions STS-66, 70, 72, and 90. A Soviet experiment in 1983 showed that a rat that orbited while pregnant later gave birth to healthy babies; the babies were "thinner and weaker than their Earth-based counterparts and lagged behind a bit in their mental development," although the developing pups eventually caught up.
The lack of knowledge about pregnancy and birth control in micro-gravity has been noted in regards to conducting long-term space missions.
A 1998 Space Shuttle mission showed that rodent Rattus mothers were either not producing enough milk or not feeding their offspring in space. However, a later study on pregnant rats showed that the animals successfully gave birth and lactated normally.
To date no human children have been born in space; neither have children gone into space. Nevertheless, the idea of children in space is taken seriously enough that some have discussed how to write curriculum for children in space-colonizing families.
As of January 2018[update]
Astronautics is the science behind going to space, and has been made possible beside the woman astronauts particularly by the many women who have been working in this and related fields.
To name some:
A number of other high-profile women have contributed to interest in space programs. In the early 2000s, Lori Garver initiated a project to increase the visibility and viability of commercial spaceflight with the "AstroMom" project. She aimed to fill an unused Soyuz seat bound for the International Space Station because "…creating a spacefaring civilization was one of the most important things we could do in our lifetime.”
- List of female astronauts
- List of spaceflight records
- List of space travelers by nationality
- Maximum Absorbency Garment (NASA garment to help contain bodily emissions during spaceflight for men and women)
- Mercury 13
- List of female explorers and travelers
- Human presence in space
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