write one setntnec about katherine johson and what she did and who she was

Katherine Johnson, an African-American mathematician, played a pivotal role in NASA's space missions, calculating complex flight equations and trajectory analysis which contributed to the success of several historic missions, including the Apollo moon landing.

Katherine Johnson was a brilliant mathematician and NASA physicist who made significant contributions to the success of the United States' space program, particularly during the Apollo missions.

Katherine Johnson, an extraordinary mathematician and physicist, made significant contributions to NASA's space program by calculating and verifying the flight trajectories for numerous historic missions, including the Apollo 11 moon landing.