NASA says pioneering black mathematician Katherine Johnson has died.
She worked on NASA’s early space missions and was portrayed in the film “Hidden Figures,” about black female aerospace workers.
In a Monday morning tweet, the space agency said it celebrates her 101 years of life and her legacy of excellence and breaking down racial and social barriers.
Johnson was one of the so-called “computers” who calculated rocket trajectories and earth orbits by hand during NASA’s early years.
Until 1958, Johnson and other black women worked in a racially segregated computing unit at what is now called Langley Research Center in Hampton, Virginia.
Their work was the focus of the Oscar-nominated 2016 film.
In 2015, President Barack Obama honored Johnson with the Presidential Medal of Freedom for her work in American space travel.
NASA administrator Jim Bridenstine called Johnson an "American hero."
"Ms. Johnson helped our nation enlarge the frontiers of space even as she made huge strides that also opened doors for women and people of color in the universal human quest to explore space," he said in a statement. "At NASA we will never forget her courage and leadership and the milestones we could not have reached without her."
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(The Associated Press, CNN contributed to this report.)
