US astronaut Scott Carpenter, only the second American to orbit the earth, dies aged 88 after suffering complications from a stroke. Astronaut Scott Carpenter, who in 1962 became the fourth American in space and the second to orbit the Earth, died on Thursday in Colorado at age 88 of complications from a stroke, his wife Patty Carpenter said. Carpenter, who lost radio contact with NASA controllers during his pioneering space flight and was found in the ocean 250 miles from the targeted splashdown site, went on to explore the ocean floor in later years. The National Aeronautics and Space Administration (NASA) chose Carpenter and six other pilots to be astronauts in 1959 for the Mercury space programme as the United States entered its space race with the Soviet Union. The only surviving member of that Mercury 7 team is John Glenn, 92, now a retired U.S. Senator from Ohio. In 1962, Glenn became the first American to orbit the earth, and Carpenter was his backup on that mission. Later that year, Carpenter made his only space flight, taking the Aurora 7 spacecraft on three laps around Earth on May 24, a few weeks after his 37th birthday. The flight of less than five hours made him the second American to orbit Earth, and the experience stayed with him until the end of his life.