Margaret Hamilton: 'They worried that the men might rebel. They didn't'

Computer pioneer Margaret Hamilton was critical to landing astronauts on the moon for the first time on 20 July 1969 and returning them safely a few days later. The young Massachusetts Institute of Technology (MIT) computer programmer and working mother led the team that created the onboard flight software for the Apollo missions, including Apollo 11. The computer system was the most sophisticated of its day. Her rigorous approach was so successful that no software bugs were ever known to have occurred during any crewed Apollo missions. "She symbolises that generation of unsung women who helped send humankind into space," said President Barack Obama in 2016 when he awarded Hamilton the Presidential Medal of Freedom, the United States' highest civilian award.