For Women’s History Month, NASA and the International Space Station celebrate the women who conduct science aboard the orbiting lab.
As of March 2020, 65 women have flown in space, including cosmonauts, astronauts, payload specialists, and space station participants. The first woman in space was Russian cosmonaut Valentina Tereshkova who flew on Vostok 6 on June 16, 1963. The first American woman in space, Sally Ride, flew aboard the Space Shuttle STS-7 in June of 1983.
Other notable firsts:
- Roscosmos cosmonaut Svetlana Savitskaya was the first woman to participate in a spacewalk on July 25, 1984.
- NASA astronaut Susan Helms was the first female crew member aboard the space station, a member of Expedition 2 from March to August 2001.
- NASA astronaut Peggy Whitson was the first female ISS Commander, starting April 2008, during a six-month tour of duty on Expedition 16.
- The most women in space at one time (four) happened in 2010, when space shuttle Discovery visited the space station for the STS-131 mission. Discovery’s crew of seven included NASA astronauts Dorothy Metcalf-Lindenburger and Stephanie Wilson and Japan Aerospace Exploration Agency (JAXA) astronaut Naoko Yamazaki. The space station crew of six included NASA astronaut Tracy Caldwell Dyson.
- Susan Helms shares the record for longest single spacewalk, totaling 8 hours 56 minutes, with fellow NASA astronaut Jim Voss.
- Expedition 24 marked a first with two women, NASA astronauts Shannon Walker and Tracy Caldwell Dyson, assigned to a space station mission from April to September 2010.
- The 2013 astronaut class was the first with equal numbers of women and men.
- NASA astronaut Anne McClain became the first woman to live aboard the space station as part of two different crews with other women: Serena Auñón-Chancellor in 2018 and Christina Koch in 2019.
- NASA astronauts Jessica Meir and Christina Koch completed the first all-female spacewalk in October 2019.
Women have participated in science on the space station since 2001; here are some highlights from their scientific work:
1. Jessica Meir, Expedition 61, 62
NASA astronaut Jessica Meir became the most recent woman in space, launching to the space station in September 2019 to take part in the hundreds of experiments under way aboard the station. In October 2019, she completed the first all-female spacewalk with fellow NASA astronaut Christina Koch. Meir holds a bachelor’s degree in biology from Brown University, a master’s degree in space studies from the International Space University, and a doctorate in marine biology from Scripps Institution of Oceanography (UCSD). In this photo, Meir waters the plant pillows of Mizuna mustards greens aboard the space station as part of the Veg-04B experiment. This study is part of a phased research project to address the need for a continuous fresh food production system in space and focuses on the effects of light quality and fertilizer on a leafy crop.
2. Christina Koch, Expedition 59, 60, 61
Christina Koch is the most recent female astronaut to return to Earth. Her 328 days in microgravity set the record for the longest time in space for a woman during a single mission. During that time, she worked on hundreds of experiments, including studies of protein crystals and plants in space. She participated in a number of studies to support future exploration missions, including research into how the human body adjusts to weightlessness, isolation, radiation and the stress of long-duration spaceflight. Koch earned bachelor’s degrees in electrical engineering and physics and a master’s degree in electrical engineering from North Carolina State University in Raleigh, NC, and worked at NASA’s Goddard Space Flight Center’s Laboratory for High Energy Astrophysics, contributing to scientific instruments on several missions studying cosmology and astrophysics. Koch served as station chief of the American Samoa Observatory and has contributed to the development of instruments used to study radiation particles for the Juno mission and the Van Allen Probe.
2. Anne McClain, Expedition 57/58, 59
Flight Engineer Anne McClain collects samples for Marrow, a long-term investigation into the negative effects of microgravity on the bone marrow and blood cells it produces. The investigation may lead to the development of strategies to help prevent these effects in future space explorers as well as for people on Earth who experience prolonged bed rest. A native of Spokane, Washington, McClain earned master’s degrees in aerospace engineering and international relations. She holds the rank of Lieutenant Colonel as an Army Aviator, with more than 2,000 flight hours in 20 different aircraft.
3. Serena M. Auñón-Chancellor, Expedition 56/57
Serena Auñón-Chancellor conducts research operations for the AngieX Cancer Therapy investigation inside the Microgravity Science Glovebox (MSG). This research may facilitate a cost-effective drug testing method and help develop safer and more effective vascular-targeted treatments. As a NASA Flight Surgeon, Auñón-Chancellor spent more than nine months in Russia supporting medical operations for International Space Station crew members. She has a degree in electrical engineering from The George Washington University, Washington, D.C., and a doctorate of medicine from The University of Texas - Health Science Center at Houston and is board certified in Internal and Aerospace Medicine.
4. Peggy Whitson, Expeditions 5, 16, 50, 51/52
Astronaut Peggy Whitson holds numerous spaceflight records, including the U.S. record for cumulative time in space – 665 days. She has tied the record for the most spacewalks for any U.S. astronaut and holds the record for the most spacewalk time for female space travelers. She also served as the first science officer aboard the space station, the first female commander of the space station, and the first woman to be station commander on two different missions. During her time on Earth, she also is the only woman to serve as chief of the astronaut office. Whitson earned a bachelor of science in biology/chemistry from Iowa Wesleyan College and a doctorate in biochemistry from Rice University. In this photo, she works on the Genes in Space-3 experiment, which completed the first-ever sample-to-sequence process entirely aboard the International Space Station. This innovation makes it possible to identify microbes in real time without having to send samples back to Earth, a revolutionary step for microbiology and space exploration.
5. Kate Rubins, Expedition 48/49
The Heart Cells investigation studies the human heart, specifically how heart muscle tissue contracts, grows and changes its gene expression in microgravity and how those changes vary between subjects. In this image, NASA astronaut Kate Rubins conducts experiment operations in the U.S. National Laboratory. Rubins also successfully sequenced DNA in microgravity for the first time as part of the Biomolecule Sequencer experiment. She received a degree in molecular biology from the University of California, San Diego, and a Ph.D. in cancer biology from Stanford University Medical School, then headed a research lab studying viral diseases in Africa, traveling there to conduct research and supervise study sites.
6. Samantha Cristoforetti, Expedition 42/43
The first Italian woman in space, ESA (European Space Agency) astronaut Samantha Cristoforetti conducts the SPHERES-Vertigo investigation in the Japanese Experiment Module (JEM). The investigation uses free-flying satellites to demonstrate and test technologies for visual inspection and navigation in a complex environment. Cristoforetti holds a master’s degree in mechanical engineering from the Technische Universität, Munich, Germany, writing her thesis on solid rocket propellants during a 10-month research stay at the Mendeleev University of Chemical Technology in Moscow, Russia. She also completed a bachelor’s degree in aeronautical sciences at the University of Naples Federico II, Italy.
7. Elena Serova, Expedition 41/42
Cosmonaut Elena Serova, the first Russian woman to visit the space station, works with the bioscience experiment ASEPTIC in the Russian Glavboks (Glovebox). The investigation assessed the reliability and efficiency of methods and equipment for assuring aseptic or sterile conditions for biological investigations performed on the space station. She graduated from the aerospace department of the Moscow Aviation Institute as a test engineer, Moscow State Academy of Instrument-Making and information as an economist, and completed a postgraduate course at the Energia Rocket Space Corporation.
8. Karen Nyberg, Expedition 36/37
NASA astronaut Karen Nyberg sets up the Multi-Purpose Small Payload Rack (MSPR) fluorescence microscope in the space station’s Kibo laboratory. The MSPR has two workspaces and a table used for a wide variety of microgravity science investigations and educational activities. The Minnesota native earned a bachelor’s degree in mechanical engineering from the University of North Dakota and a master of science and doctorate in mechanical engineering from the University of Texas at Austin. Her graduate research investigated human thermoregulation and experimental metabolic testing and control, specifically related to the thermal control in space suits.
9. Sunita Williams, Expeditions 32/33, 14/15
This spacewalk by NASA astronaut Sunita Williams and Japan Aerospace Exploration Agency (JAXA) astronaut Aki Hoshide, reflected in Williams’ helmet visor, lasted six hours and 28 minutes. They completed installation of a main bus switching unit (MBSU) and installed a camera on the International Space Station’s robotic Canadarm2. Williams participated in seven spacewalks and was the second woman ever to be commander of the space station. She also is the only person ever to have run a marathon while in space. She flew in both the space shuttle and Soyuz, and her next assignment is to fly a new spacecraft: the Boeing CST-100 Starliner during its first operational mission for NASA’s Commercial Crew Program. Williams earned a bachelor’s degree in physical science from the U.S. Naval Academy and a master of science in engineering management at Florida Institute of Technology. As a naval aviator, she logged more than 3,000 flight hours in more than 30 different aircraft.
10. Cady Coleman, Expeditions 26/27
Working on the Capillary Flow Experiment (CFE), NASA astronaut Catherine (Cady) Coleman performs a Corner Flow 2 (ICF-2) test. CFE observes the flow of fluid in microgravity, in particular capillary or wicking behavior. Coleman earned a bachelor’s degree in chemistry from Massachusetts Institute of Technology and a doctorate in polymer science and engineering from the University of Massachusetts and received a commission as a second lieutenant in the U.S. Air Force. As a participant in physiological and equipment studies for the Armstrong Aeromedical Laboratory, she set several endurance and tolerance records. Coleman logged more than 4,330 total hours in space aboard the Space Shuttle Columbia and the space station.
11. Tracy Caldwell Dyson, Expedition 24
A system to purify water for use in intravenous administration of saline would make it possible to better treat ill or injured crew members on future long-duration space missions. The IVGEN investigation demonstrates hardware to provide that capability. Tracy Caldwell Dyson sets up the experiment hardware in the station’s Microgravity Science Glovebox (MSG). As noted above, she and Shannon Walker were part of the first space station crew with more than one woman. She has a degree in chemistry from California State University Fullerton, where she competed in track and field, and a Ph.D. in chemistry from the University of California at Davis. At UC Davis, she designed and built peripheral components for a variable temperature, ultra-high vacuum scanning tunneling microscopy system.
12. Shannon Walker, Expedition 24/25
Astronaut Shannon Walker flew on Expedition 24/25, a long-duration mission that lasted 163 days. Here she works at the Cell Biology Experiment Facility (CBEF), an incubator with an artificial gravity generator used in various life science experiments, such as cultivating cells and plants on the space station. Walker has a bachelor’s degree in physics and a master of science and a Ph.D. in space physics from Rice University. She began working in the space station program in the area of robotics integration, worked on avionics integration and on-orbit integrated problem solving for the space station in Russia, and served as deputy and then acting manager of the On-Orbit Engineering Office at NASA prior to selection as an astronaut candidate.
13. Stephanie Wilson, STS-120, STS-121, STS-131
Astronaut Stephanie Wilson unpacks a Microgravity Experiment Research Locker Incubator II (MERLIN) in the Japanese Experiment Module (JEM). Part of the Cold Stowage Fleet of hardware, MERLIN provides a thermally controlled environment for scientific experiments and cold stowage for transporting samples to and from the space station. Currently serving as branch chief for crew mission support in the Astronaut Office, Wilson logged more than 42 days in space on three missions on the space shuttle, part of the Space Transportation System (STS). She earned a degree in engineering science from Harvard University and a master’s in Aerospace Engineering from the University of Texas at Austin. Wilson also served as a member of the 2009, 2013, and 2017 Astronaut Selection Boards.
Learn more about the station’s history of crew members here. For daily updates on the science happening aboard the space station, follow @ISS_Research Space Station Research and Technology News, or our Facebook. For opportunities to see the space station pass over your town, check out Spot the Station.
Last Updated: March 6, 2020
Editor: Michael Johnson
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