Kathrine Johnson Orbits Pin Polo the second in our Women

the second in our Women in Science series

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Kathrine Johnson Orbits Pin Polo the second in our WomenKatherine Johnson was a mathematician who calculated the flight paths for many missions during her more than three decades with NASA. This pin is based on a chart Johnson created explaining how to determine where an orbiting spacecraft would land so that astronauts could be recovered. When NASA began using electronic computers to calculate flight paths, astronauts were concerned about relying on these new machines. John Glenn (the first American to