09/13/2026
Mae Jemison grew up in Chicago, staring at the night sky and assuming she'd get to space one day. Not hoping. Assuming.
She was born on October 17, 1956, in Decatur, Alabama, and by the time she reached Stanford University in 1973, she was already juggling two very different worlds — chemical engineering and African American studies. She graduated in 1977 with both degrees. Most people struggle to finish one.
From there she went straight into medicine at Cornell, but she didn't stay in a classroom. In 1979, she traveled to Kenya to study. Not long after, she volunteered in a Cambodian refugee camp in Thailand, treating people with almost nothing. She earned her medical degree in 1981. What kind of person heads toward the hardest work in the world before they even have a license?
Then she joined the Peace Corps. From 1983 to 1985, Dr. Jemison served as a medical officer in Liberia and Sierra Leone, managing healthcare for Peace Corps staff and embassy personnel, and working alongside the CDC on a hepatitis B vaccine project. She was treating real patients in real crises — years before anyone at NASA knew her name.
In June 1983, Sally Ride became the first American woman in space. Jemison watched that moment and felt something shift. She applied to NASA's astronaut program in 1985.
Then the Challenger disaster happened in 1986, and NASA paused the entire program. Years of work, on hold, for reasons completely outside her control. Would she get another shot?
She reapplied. In 1987, out of roughly 2,000 applicants, only 15 were chosen. Mae Jemison was one of them.
Five years of training later, she boarded Endeavour for mission STS-47 — a joint U.S.-Japan mission called Spacelab-J, flying alongside Japan's Mamoru Mohri. At 10:23 a.m. EDT on September 12, 1992, the shuttle lifted off — the first on-time shuttle launch NASA had managed since 1985.
She carried a photograph of Bessie Coleman, the first Black woman to earn a pilot's license, tucked among her belongings. Jemison later said she wished she'd learned about Coleman as a child. Now a new generation would learn about Jemison the same way.
For eight days, she worked as the mission's science specialist, running experiments on weightlessness, bone loss, and motion sickness — testing her own body along with her crewmates'. The mission logged over 190 hours in orbit and circled the Earth 126 times before Endeavour touched down on September 20, 1992.
She left NASA in March 1993. Most people would call that the end of the story. Jemison treated it as page one.
She went on to found the Jemison Group, taught at Dartmouth, launched BioSentient Corp in 1999, and later started the 100 Year Starship project to push interstellar travel research forward. She even appeared on Star Trek: The Next Generation in 1993 — the first real astronaut to ever do it.
A doctor who healed people in some of the hardest conditions on Earth ended up healing something else entirely: the idea of who gets to leave it. She never chose between medicine and the stars. She just refused to pick only one.