Nasa facility honors African American woman who plotted key space missions

Research center named after Katherine Johnson, 99, whose story was told in the film Hidden Figures: 'I liked work. I liked the stars and the stories we were telling'

Katherine Johnson, the mathematician whose calculations influenced some of the most important missions of the space age, on Friday helped Nasa open a new research and development facility that bears her name.

Related: Hidden figures: the history of Nasa's black female scientists