24. Mae C Jemison
October 17, 1956 - is an American physician and NASA astronaut. She became the first African American woman to travel in space when she went into orbit aboard the Space Shuttle Endeavour on September 12, 1992. After her medical education and a brief general practice, Jemison served in the Peace Corps from 1985 to 1987, when she was selected by NASA to join the astronaut corps.
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