Pioneering NASA mathematician Katherine Johnson was part of a group of African-American women who worked on critical mathematical calculations in the early days of human spaceflight.
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Pioneering NASA mathematician Katherine Johnson was part of a group of African-American women who worked on critical mathematical calculations in the early days of human spaceflight.
Pioneering NASA mathematician Katherine Johnson was part of a group of African-American women who worked on critical mathematical calculations in the early days of human spaceflight.