DENVER, Oct 12: – 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. His wife said he died in a Denver hospice. (agencies)