In Brief
- Hamilton led the Software Engineering Division at MIT’s Instrumentation Laboratory, creating the onboard flight software that enabled Neil Armstrong and Buzz Aldrin to safely land on the Moon in 1969.
- She is credited with coining the term "software engineering" and establishing rigorous standards for system architecture and error detection during computing's early era.
- Former U.S. President Barack Obama awarded Hamilton the Presidential Medal of Freedom in 2016 for her groundbreaking contributions to STEM and software development.
Renowned computer scientist and software engineering pioneer Margaret Hamilton, whose guidance software made NASA's 1969 Apollo 11 moon landing possible, passed away on September 30, 2026, at a hospital in Cambridge, Massachusetts. She was 90 years old.
The Massachusetts Institute of Technology (MIT) formally announced her passing on Wednesday, October 7, 2026, paying tribute to her contributions to computer science and space exploration.
Hamilton served as Director of the Software Engineering Division at MIT's Instrumentation Laboratory, where she headed the team responsible for developing the onboard flight software for NASA’s Apollo and Skylab missions. During the historic Apollo 11 lunar descent, the software's built-in priority system prevented a mission abort by overriding secondary radar tasks to prioritize landing calculations, allowing Neil Armstrong and Buzz Aldrin to touch down safely on the lunar surface.
Beyond her work with NASA, Hamilton was instrumental in establishing computer programming as an explicit engineering discipline, popularizing the term "software engineering" at a time when formal training in the field did not exist. In recognition of her pioneering work, former U.S. President Barack Obama awarded her the Presidential Medal of Freedom in 2016.
Hamilton later founded two private software firms—Higher Order Software in 1976 and Hamilton Technologies in 1986—where she developed new methodologies for system design and software reliability.
