Margaret Hamilton, scientist who worked on Nasa's Apollo program, dead at 90

American scientist Margaret Hamilton, who led development of the computer system used by Nasa’s Apollo lunar program, has died at the age of 90, her former employer said Wednesday. In a statement, the Massachusetts Institute of Technology called Hamilton, who taught at the prestigious university from 1959 to the mid-1970s, a “computing pioneer” and said she died on September 30. “To say Margaret Hamilton was a pioneer — to say she was ahead of her time — would be a dramatic understatement,” said Olivier de Weck, the Apollo Program Professor and interim head of the MIT Department of…