Katherin Johnson, whose 101st birthday we celebrate today, worked on programs throughout @nasa’s history, from the Mercury program through the early days of the space shuttle era. Her calculations influenced spaceflight programs for more than three decades. . . . . . . . . . #hiddenfigures #womeninscience #blackandSTEM #stem #science #space #flight #spacescience #spacetravel #nasa #womancrush #history #sciencehistory #herstory #hero #sciencehero #shero #birthday #hbd #otd #onthisday #math