Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. NASA astronaut and ...

Altogether, she accumulated 665 days in space, the most for any U.S. astronaut and eighth on the all-time space endurance list at the time of her return to Earth. Whitson retired from NASA in June ...

at 608 days in space, she is the second in all-time cumulative time spent in space and ranks sixth on the list of longest single spaceflight by an American, tied with NASA astronaut Butch Wilmore, ...