Margaret Hamilton, whose software helped land Apollo 11 on the Moon, dies at 90

Computer scientist Margaret Hamilton, who played a crucial role in the successful lunar landing of Apollo 11, has passed away at the age of 90. MIT confirmed her death on September 30th. MIT described her as a true pioneer, a woman ahead of her time who pioneered the field of software engineering. Hamiliton worked at MIT from 1959 until the mid-1970s, leading the Software Engineering Division, where she oversaw the development and testing of all onboard in-flight software for the Apollo 11 mission.

Her groundbreaking work came to the fore on July 20, 1969, when an onboard computer raised an alarm signaling an error that could have jeopardized the landing. However, Hamilton and her team had anticipated such a situation and engineered a priority-driven software system. This allowed the critical tasks - landing on the Moon - to take precedence over any background processes that might have been overloaded. The photograph of Hamilton standing beside the towering stack of printed code became iconic.

In 2016, President Barack Obama honored her work with the Presidential Medal of Freedom, acknowledging her significant contributions to science and space exploration. Hamilton, born in Indiana in 1936, had a distinguished academic career before joining MIT. She first studied mathematics at the University of Michigan, earning a BA in 1958.

She moved to Boston a year later to support her husband, who was pursuing his law degree at MIT. After her work on Apollo 11, Hamilton went on to found her own software businesses, with her company still operating in Massachusetts.

MIT expressed their deep sorrow over her passing but recognized her extraordinary achievements throughout her long life. Earlham College, where Hamilton had studied, also honored her legacy, praising her pioneering spirit and its continued inspiration to future generations. She leaves behind her daughter, a son-in-law, two grandsons, and four great-grandchildren.