from the archive · Contemporary era
Mae Jemison
b. October 17, 1956 · astronaut · physician · professor · physicist
By The Keeper · Published
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Mae Jemison is an American physician, engineer, and former NASA astronaut who in 1992 became the first Black woman to travel into space, flying aboard the Space Shuttle Endeavour on mission STS-47. Born on October 17, 1956, in Decatur, Alabama, she trained as a chemical engineer and medical doctor before joining the astronaut corps, and later built a career spanning technology consulting, teaching, and public advocacy for science education. Her flight marked a turning point in the visibility of women of color in spaceflight, and her later work through the 100 Year Starship project has kept her at the center of conversations about humanity's long-term future beyond Earth. Anyone asking who was Mae Jemison, or rather who she is, since she remains an active public figure, finds a life that connects medicine, engineering, dance, and exploration in unusual ways.
Early Life
Mae Carol Jemison was born on October 17, 1956, in Decatur, Alabama, the youngest of three children of Charlie Jemison, a maintenance supervisor and carpenter, and Dorothy Jemison, an elementary school teacher [1]. When Mae was three years old the family moved to Chicago, Illinois, in search of better schools and employment, and she has often identified Chicago as her hometown [2].
Her curiosity about science surfaced early. As a child she spent hours in the school library reading about astronomy, and she watched the Apollo missions on television with a mixture of excitement and frustration, noticing that none of the astronauts looked like her [1]. She has recalled being inspired instead by Lieutenant Uhura, the Black communications officer played by Nichelle Nichols on the television series Star Trek, a fictional figure who suggested that space belonged to everyone [3].
Jemison attended Morgan Park High School on Chicago's South Side, where she pursued both science and dance with equal seriousness. She graduated in 1973 at the age of sixteen and entered Stanford University on a scholarship [2]. The combination of analytical work and performance that marked her adolescence, laboratory experiments alongside ballet and modern dance classes, would remain a feature of her adult life.
Education and Medical Career
At Stanford, Jemison completed a Bachelor of Science degree in chemical engineering in 1977, while also fulfilling the requirements for a degree in African and Afro-American studies [1]. She was one of very few Black women in her engineering classes, and she later spoke frankly about professors who ignored or dismissed her, an experience that sharpened her resolve rather than diminishing it [4]. Outside the classroom she led the Black Students Union and choreographed dance and theater productions.
She then entered Cornell University Medical College in New York, earning her M.D. in 1981 [2]. Her medical training carried her well beyond the United States: as a student she worked and studied in Cuba, Kenya, and a Cambodian refugee camp in Thailand, experiences that pointed her toward international health [1].
After completing an internship at Los Angeles County/USC Medical Center, Jemison practiced briefly as a general physician in Los Angeles. From 1983 to 1985 she served as the Area Peace Corps Medical Officer for Sierra Leone and Liberia, one of the youngest people to hold that post, where she supervised medical care for Peace Corps volunteers and embassy staff, managed pharmacy and laboratory operations, and worked with the National Institutes of Health and the Centers for Disease Control on vaccine research projects [4]. The job demanded independent judgment in difficult conditions, training she would later credit as preparation for spaceflight.
Becoming an Astronaut
Jemison returned to Los Angeles in 1985, took a position with a health maintenance organization, and enrolled in graduate engineering courses while preparing an application to NASA's astronaut program [2]. The Challenger accident in January 1986 delayed selection, but she reapplied, and in June 1987 NASA chose her as one of fifteen candidates from a pool of roughly 2,000 applicants [1]. She became the first Black woman admitted to the astronaut training program.
After completing a year of training and evaluation in 1988, she qualified as a mission specialist. Her early assignments at the Johnson Space Center in Houston included launch support work at Kennedy Space Center in Florida and duties in the Shuttle Avionics Integration Laboratory, where astronauts verified flight software [4].
Selection alone made news, but Jemison consistently redirected attention from the symbolism to the work. She told interviewers that she had wanted to go to space since childhood and would have pursued the goal whether or not anyone had preceded her [3]. Among Mae Jemison facts often repeated in profiles, one stands out for what it says about her sense of history: she carried into orbit a poster from the Alvin Ailey American Dance Theater, a photograph of Bessie Coleman, the first Black woman to hold a pilot's license, and a flag of the Alpha Kappa Alpha sorority, deliberately linking her flight to those who had opened doors before her [5].
The Flight of STS-47
On September 12, 1992, the Space Shuttle Endeavour lifted off from Kennedy Space Center carrying Jemison and six crewmates on mission STS-47, and she became the first Black woman in space [1]. The eight-day flight, a cooperative mission between the United States and Japan designated Spacelab-J, carried out life sciences and materials processing experiments in a pressurized laboratory module in the shuttle's cargo bay [4].
Jemison served as the science mission specialist, a role centered on the research program rather than shuttle operations. She was co-investigator on a bone cell experiment examining how spaceflight affects bone loss, and she conducted studies on the crew involving motion sickness and the use of biofeedback techniques, drawing directly on her medical training [2]. The mission also included experiments on frog fertilization and development in microgravity.
Endeavour landed on September 20, 1992, after 127 orbits of the Earth and roughly 190 hours in space [4]. Jemison began each shift on orbit with a greeting borrowed from Star Trek, telling mission control that hailing frequencies were open, a small gesture that acknowledged the fictional character who had once shown her that space travel could include her [3]. Any account of Mae Jemison achievements begins with this flight, though she has argued that its meaning lies less in the record set than in the expectations it changed.
Life After NASA
Jemison resigned from NASA in March 1993, after six years with the agency, saying she wanted to explore how social sciences and advancing technology interact [2]. That same year she founded the Jemison Group, a Houston-based consulting company that examined technology design in light of social and economic questions, including a project studying satellite-based telecommunications for health care delivery in West Africa [1].
Teaching became a second thread. From 1995 to 2002 she was a professor of environmental studies at Dartmouth College, where she directed the Jemison Institute for Advancing Technology in Developing Countries [4]. She also established the Dorothy Jemison Foundation for Excellence, named for her mother, which runs The Earth We Share, an international science camp that brings together students aged twelve to sixteen to work on global problems through experimental learning [1].
Her connection to Star Trek came full circle in 1993 when she appeared in an episode of Star Trek: The Next Generation, becoming the first real astronaut to appear on the series [3]. She published a memoir for young readers, Find Where the Wind Goes, in 2001, and later co-authored a series of children's science books [5]. In 2012 she won the bid to lead the 100 Year Starship project, an initiative seeded by the Defense Advanced Research Projects Agency to foster the research and public engagement needed to make human interstellar travel possible within a century [6]. She has framed the project less as a spacecraft program than as an engine for solving problems, from energy to closed-loop life support, whose answers would matter on Earth as much as in space.
Personal Life
Jemison has never married and has kept her private life largely out of public view, a choice consistent with the strong sourcing standards any Mae Jemison biography must respect [2]. She is known for interests that range well beyond science. Dance has remained a lifelong pursuit: she trained seriously enough as a young woman to consider a professional career before choosing medicine, and she built a dance studio in her home [1].
She speaks Russian, Japanese, and Swahili in addition to English, languages accumulated through her international medical work and astronaut training [4]. Fellow crew members and colleagues have described her as direct and independent, and she has been open about refusing to let institutions define what she could attempt.
Her public statements consistently emphasize that science literacy is a civil rights and equity issue. She has argued that talent is distributed evenly across society while opportunity is not, and much of her foundation work targets students who would otherwise have little access to hands-on science [6].
Legacy
Jemison's place in the history of spaceflight is fixed: she broke a barrier that had stood through more than three decades of human space travel, and the astronauts of color and women who followed her into orbit have frequently named her as a direct influence [5]. She was inducted into the National Women's Hall of Fame in 1993 and the International Space Hall of Fame in 2004, and she holds honorary doctorates from numerous universities [2].
Her influence extends into classrooms and popular culture. Schools in several states carry her name, a LEGO figure of her appeared in the 2017 Women of NASA set, and her story is a staple of children's literature about exploration [5]. For students asking what is Mae Jemison famous for, the answer usually starts with Endeavour but rarely ends there, because her later work in technology policy, global health, and education has given the milestone a longer arc.
Perhaps her most distinctive contribution is the argument, made across decades of speeches and projects, that the sciences and the arts are not opposites but two expressions of the same human impulse to understand and create [6]. A chemical engineer who danced, a physician who flew in space, and an astronaut who now plans for interstellar travel, Jemison has built a career that resists neat categories, which is precisely the point she has spent her public life making.
Questions & Answers
- When was Mae Jemison born?
- Mae Jemison was born on October 17, 1956, in Decatur, Alabama. Her family moved to Chicago, Illinois, when she was three years old, and she grew up and attended school there.
- What is Mae Jemison famous for?
- Mae Jemison is best known as the first Black woman to travel into space. She flew aboard the Space Shuttle Endeavour on mission STS-47 in September 1992, serving as the science mission specialist on a joint United States and Japan research flight.
- What did Mae Jemison do before becoming an astronaut?
- She earned a chemical engineering degree from Stanford University and a medical degree from Cornell. She practiced medicine in Los Angeles and served as the Peace Corps Medical Officer for Sierra Leone and Liberia from 1983 to 1985 before NASA selected her in 1987.
- Is Mae Jemison still alive?
- Yes, Mae Jemison is alive and remains active in public life. She leads the 100 Year Starship project, runs the Dorothy Jemison Foundation for Excellence, and speaks widely on science education and exploration.
- How long was Mae Jemison in space?
- Jemison spent roughly 190 hours in space, a little under eight days, during mission STS-47. Endeavour launched on September 12, 1992, completed 127 orbits of the Earth, and landed on September 20, 1992.
- Why did Mae Jemison leave NASA?
- She resigned from NASA in March 1993 to pursue interests in how technology interacts with society. She founded the Jemison Group consulting firm that year and later taught environmental studies at Dartmouth College.
References
Every record in this archive is kept against verifiable sources.
- [1]Mae Jemison: American physician and astronaut. Encyclopaedia Britannica. https://www.britannica.com/biography/Mae-JemisonWeb
- [2]Mae C. Jemison (M.D.) NASA Astronaut Biography. National Aeronautics and Space Administration, Johnson Space Center. Primary source
- [3]Mae Jemison, First Black Woman in Space, on Star Trek and Interstellar Travel. Smithsonian National Air and Space Museum. https://airandspace.si.eduWeb
- [4]STS-47 Mission and Crew Information. National Aeronautics and Space Administration. https://www.nasa.govPrimary source
- [5]Mae Jemison. Find Where the Wind Goes: Moments from My Life. Scholastic Press, 2001. Book
- [6]100 Year Starship: An Interview with Mae Jemison. The New York Times. https://www.nytimes.comNews
- [7]Mae Jemison, National Women's Hall of Fame Inductee Profile. National Women's Hall of Fame. https://www.womenofthehall.org/inductee/mae-jemison/Web

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