Margaret Hamilton dies at 90. Her programming helped astronauts reach the moon.

Margaret Hamilton, a pioneering software engineer, has died at age 90. Working at MIT, she developed critical computer programs that anticipated problems, enabling NASA astronauts to reach the moon during the Apollo missions. Hamilton is credited with popularizing the term software engineer for her contributions to space exploration. In recognition of her achievements, she was inducted into the National Aviation Hall of Fame and received the Presidential Medal of Freedom for her essential role in lunar success.