Mae Carol Jemison was born on October 17, 1956, in Decatur, Alabama, the youngest of three children of Charlie Jemison, a maintenance supervisor, and Dorothy Jemison, an elementary school teacher. When she was three, the family moved to Chicago, where she grew up on the South Side. From an early age she was drawn to science. She watched the Apollo missions on television and told teachers she wanted to be a scientist, only to be steered toward nursing. She ignored the suggestion. At Morgan Park High School she excelled in science and dance, graduating in 1973 at sixteen and entering Stanford University on a National Achievement Scholarship.
At Stanford she earned a Bachelor of Science in chemical engineering and a Bachelor of Arts in African and African-American studies in 1977. The dual degree was deliberate. She wanted technical training and a grounding in culture and history, and she refused to treat the two as separate. After Stanford she went to Cornell University Medical College, receiving her M.D. in 1981. During medical school she traveled to Kenya and to a Cambodian refugee camp in Thailand, work that sharpened her interest in international health. She completed her internship at Los Angeles County-USC Medical Center and then practiced as a general practitioner in Los Angeles.
In 1983 she joined the Peace Corps and served as a medical officer in Sierra Leone and Liberia until 1985. She managed health care for Peace Corps volunteers and State Department personnel, supervised a laboratory, wrote self-care manuals, and worked on research into vaccines for hepatitis B, rabies, and schistosomiasis. The posting confirmed both her clinical skill and her comfort operating far from institutional support. When she returned to the United States she resumed private practice in Los Angeles while applying to NASA.
NASA selected her in June 1987 as one of fifteen candidates in Astronaut Group 12, the first class chosen after the Challenger disaster. She completed training in August 1988 and became a mission specialist. Her flight assignment was STS-47, the Spacelab-J mission, a joint effort with Japan’s National Space Development Agency. On September 12, 1992, Space Shuttle Endeavour lifted off from Kennedy Space Center with Jemison aboard. She was thirty-five. The eight-day flight carried forty-three experiments in life sciences and materials processing. Jemison was a co-investigator on two bone-cell research experiments and conducted experiments on motion sickness, weightlessness, and the development of frogs from fertilized eggs. She also carried several personal items into orbit, including a poster of dancer Judith Jamison, a Bundu statue from West Africa, and a flag of the Alpha Kappa Alpha sorority. Endeavour landed at Kennedy on September 20, 1992, after 127 orbits and nearly 3.3 million miles. Jemison became the first African American woman to fly in space.
She left NASA in March 1993. In public remarks she cited a desire to pursue broader applications of technology and to spend more time on education and international development. She founded The Jemison Group, a technology consulting firm that evaluates the social and cultural impact of advanced technologies, and the Dorothy Jemison Foundation for Excellence, named for her mother, which runs science camps and educational programs. One of the foundation’s better-known initiatives is The Earth We Share, an international science camp for students aged twelve to sixteen that focuses on critical thinking and global problems rather than rote laboratory technique.
In 2012 she became principal of the 100 Year Starship project, seeded by a grant from the Defense Advanced Research Projects Agency. The initiative’s premise is that the capabilities required for human travel beyond the solar system within a century will also produce nearer-term benefits in energy, health, and materials on Earth. Jemison has described the project as an exercise in long-range thinking rather than a spacecraft design bureau. She has also taught environmental studies at Dartmouth College and served on numerous corporate and nonprofit boards.
Her public presence extends beyond technical institutions. She appeared in an episode of Star Trek: The Next Generation after telling producers she had been inspired by Nichelle Nichols’s portrayal of Lieutenant Uhura. She has spoken widely on the necessity of including the arts and humanities in scientific education, arguing that creativity and cultural literacy are not ornaments to technical work but conditions for it. In interviews she has been consistent about the obstacles she faced: teachers who doubted her aptitude, institutions that treated her presence as exceptional rather than ordinary, and a culture that still separates “hard” science from social context. She has also been consistent in refusing to treat those obstacles as the main subject of her career. The work, she has said, is the point.
Jemison’s record is compact but unusually broad. She holds nine honorary doctorates. She is a member of the National Academy of Medicine and has received the National Organization for Women’s Intrepid Award and the Kilby Science Award, among others. Her memoir, Find Where the Wind Goes, written for young readers, recounts the path from Chicago classrooms to orbit without presenting the path as inevitable. The through-line in her choices—engineering and African-American studies, clinical medicine and Peace Corps service, shuttle experiments and a century-scale interstellar study—is an insistence that technical competence and social purpose belong in the same career. That insistence is what made the 1992 flight more than a demographic first. It remains the practical argument of the institutions she has built since.