Katherine Johnson, Trailblazing NASA Mathematician, Celebrates 100 Trips Around the Sun

Katherine Johnson, Trailblazing NASA Mathematician, Celebrates 100 Trips Around the Sun  Space.com Katherine Johnson, who hand-crunched the numbers for America's first manned space flight, is 100 today  wtvr.com Leadership Lessons From NASA Pioneer Katherine Johnson, Who Just Turned 100  mySanAntonio.comFull coverage

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