Katherine Johnson worked for NASA as a trajectory calculator, before computers

Katherine Johnson worked for NASA as a trajectory calculator, before computers
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Katherine Johnson (born August 26, 1918) is an American physicist, space scientist, and mathematician who contributed to America's aeronautics and space programs with the early application of digital electronic computers at NASA. Known for accuracy in computerized celestial navigation, she calculated the trajectory for Project Mercury and the 1969 Apollo 11 flight to the Moon.@Curionic

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