Margaret Hamilton, the computer scientist who led the team that developed the onboard flight software for NASA's Apollo program, has died at age 90.

Margaret Hamilton, a pioneering computer scientist who directed the development of onboard flight software for NASA’s Apollo missions, died on September 30 at age 90. Her work was instrumental in the success of the Apollo 11 moon landing, where her software’s error-detection systems allowed the mission to continue despite a computer alarm. Hamilton was later recognized as a significant figure in the history of technology and a role model for women in the field.

Career and Apollo Contributions

Hamilton began her career at MIT in 1959, initially working on weather prediction software before joining the Instrumentation Lab to work on the Apollo program. She was the first programmer hired for the project and eventually led the team responsible for the command and service module software. Her work gained widespread recognition during the 1969 Apollo 11 mission, when her software successfully managed a critical hardware-related alarm, allowing the spacecraft to proceed with its landing.

Legacy and Recognition

In 2016, President Barack Obama awarded Hamilton the Presidential Medal of Freedom, citing her critical role in the safety of the Apollo astronauts. In later years, she became a public symbol for women in technology, featured in a Lego set and highlighted during the 50th anniversary of the moon landing. Her daughter, Lauren Hamilton, noted that while Margaret was a reserved person, she was pleased to be acknowledged for her contributions to the field.