Chiaki Mukai, born in 1952 in Tatebayashi, became the first Japanese woman to reach space and the first Japanese citizen to complete two separate spaceflights. Her career as a physician and cardiovascular surgeon provided the foundation for her later contributions to space life sciences, ultimately leading to significant leadership roles in both academic institutions and national space agencies.
Medical Foundation and Early Career
Mukai graduated from Keio University School of Medicine in 1977 with a doctorate in medicine, following her graduation from Keio Girls Senior High School in 1971. She pursued specialized training in surgery, serving as a resident and medical staff member at Keio University Hospital, Shimizu General Hospital, and Saiseikai Kanagawa Hospital. In 1988, she earned a doctorate in physiology from Keio University. By 1989, she had achieved board certification as a cardiovascular surgeon from the Japan Surgical Society. Throughout her medical career, she held various clinical roles, including chief resident in cardiovascular surgery at Keio University Hospital.
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In 1985, Mukai was selected by NASDA, the Japanese national space agency, as a payload specialist candidate. She flew on two major Space Shuttle missions. Her first mission, STS-65 aboard Columbia in July 1994, focused on microgravity science and human physiology, logging 353 hours and 55 minutes in orbit. In 1998, she served on STS-95 aboard Discovery, a mission dedicated to research on aging and technology testing. Over the course of her two missions, she spent a total of 23 days in space, accumulating over 566 total flight hours.
Research and Academic Leadership
Beyond her time in orbit, Mukai engaged in extensive research and academic administration. She served as a visiting scientist at the Space Biomedical Research Institute from 1987 to 1988 and later held a position as a research instructor at Baylor College of Medicine. Following her flight career, she directed the JAXA Center for Applied Space Medicine and Human Research and served as a senior advisor to the JAXA Executive Director. In 2015, she was appointed vice president of the Tokyo University of Science and currently serves as a technical counselor for JAXA.
Fast facts
- Born: 1952, Tatebayashi, Japan
- Education: Keio University
- Spaceflights: STS-65 (1994), STS-95 (1998)
- Total time in space: 23 days
- Professional fields: Surgery, physiology, space exploration
- Awards: Princess of Asturias Award (1999), Knight of the Legion of Honour (2015)
Questions readers ask
Was Chiaki Mukai the first Asian woman in space?
Yes, she holds the distinction of being the first Asian woman to fly in space.
What is Chiaki Mukai's academic background?
She is a physician with a doctorate in medicine and a doctorate in physiology from Keio University.
Achievements
- Knight of the Legion of Honour — 2015
- Held posts at Tokyo University of Science
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