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Continue to ChatNASA Says Pioneering Black Mathematician Katherine Johnson Has Died https://lyapiscrew.com/2020/02/24/nasa-says-pioneering-black-mathematician-katherine-johnson-has-died.html
NASA Says Pioneering Black Mathematician Katherine Johnson Has Died https://lyapiscrew.com/2020/02/24/nasa-says-pioneering-black-mathematician-katherine-johnson-has-died.html