Pioneering mathematician Katherine Johnson has died at the age of 101. Johnson was one of the first African-American women to work at NASA. During her 35-year career, Johnson’s calculations were critically to several space missions, including the missions of Alan Shepard and John Glenn.

Johnson’s legendary career was relatively unknown until her story was shared in the 2016 film Hidden Figures. The film, based on the eponymously titled book written by Margot Lee Shetterly, starred Taraji Henson as Johnson and helped bring Katherine Johnson’s story to the forefront. Johnson also received several awards including a 2015 Presidential Medal of Freedom Award.

Katherine Johnson receives Presidential Medal of Freedom Award in 2015.

Two NASA facilities are also named after Johnson. Her legacy will live on in history.