KATHERINE JOHNSON ONE OF THE ORIGINAL HIDDEN FIGURES that the movie is based on true genius she is

Katherine Johnson -- the mathematician portrayed by Taraji P. Henson in the Oscar-nominated film "Hidden Figures" -- has died.

NASA announced the pioneering figure died Monday. It was her groundbreaking math work that helped calculate the trajectories for Alan Shepard's history-making journey in space. She was also the one who gave the go-ahead for John Glenn's mission into orbit

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