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Katherine Johnson Receives Presidential Medal of Freedom

Former NASA mathematician Katherine Johnson is seen after President Barack Obama presented her with the Presidential Medal.
Katherine Johnson — former NASA mathematician who calculated the trajectory for Alan Shepard, the first American in space — received the Presidential Medal of Freedom from President Barack H. Obama on Tuesday, November 24, 2015.

Former NASA mathematician Katherine Johnson is seen after President Barack Obama presented her with the Presidential Medal of Freedom, Tuesday, Nov. 24, 2015, during a ceremony in the East Room of the White House in Washington.

Credit: NASA/Bill Ingalls

​Read More: https://www.nasa.gov/feature/katherine-johnson-the-girl-who-loved-to-count