/tags/peggy-whitson Peggy Whitson en-US Copyright Sun, 20 Nov 2016 21:49:00 GMT /breaking-news/2016-11-20/at-56-peggy-whitson-becomes-oldest-female-astronaut On the mission, she's projected to once again become the U.S. astronaut with the most time spent in orbit. Sun, 20 Nov 2016 21:49:00 GMT /breaking-news/2016-11-20/at-56-peggy-whitson-becomes-oldest-female-astronaut Bill Chappell