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From Wikipedia, the free encyclopedia Katherine Johnson (née Coleman; August 26, 1918 – February 24, 2020), also known as Katherine Goble, was an American mathematician whose calculations of orbital mechanics as a NASA employee were critical to the success of the first and subsequent U.S. crewed spaceflights. During her 35-year career at NASA and its predecessor, she earned a reputation for mastering complex manual calculations and helped pioneer the use of computers to perform the tasks.