Katherine Johnson – NASA Mathematician Who Sent Humans to Space

This episode highlights the extraordinary life and achievements of Katherine Johnson, a brilliant mathematician whose calculations made some of NASA's most important space missions possible. Born in 1918 in West Virginia, she showed exceptional talent for mathematics from a young age and overcame racial and gender barriers to pursue higher education and a scientific career. In 1953, Johnson joined NACA (later NASA) as a "human computer," working in a segregated unit of African American women mathematicians. Through talent and determination, she earned the respect of engineers and became deeply involved in mission planning. She played a key role in Project Mercury, calculating trajectories for Alan Shepard's first U.S. spaceflight and John Glenn's orbital mission. Glenn famously asked that Johnson verify the computer's numbers before his launch. She later contributed to the Apollo program, including Apollo 11 and Apollo 13, helping ensure astronauts could travel safely to the Moon and return to Earth. Known for her precision and careful reasoning, Johnson's work saved missions and lives. Although her contributions were overlooked for many years, she eventually received national recognition, including the Presidential Medal of Freedom in 2015. Her story, popularized by Hidden Figures, continues to inspire future generations. Katherine Johnson's legacy shows how intelligence, perseverance, and courage can overcome barriers and help humanity reach the stars.