Margaret Hamilton, the computer scientist who helped send humans to the Moon, has died at the age of 90. She led the team that built key flight software for NASA’s Apollo program. Her work helped make the first crewed Moon landings possible. Hamilton died on September 30 at a hospital in Cambridge, Massachusetts. Her daughter, Lauren Hamilton, confirmed her death. NASA Administrator Jared Isaacman also praised her work, saying it helped make the first human journeys to…