October 27, 2016 - File - Iowa native PEGGY WHITSON keeps piling up firsts in her long career as an astronaut. In two weeks, she will rocket into space again on her third mission to the International Space Station. She was its first female commander in 2007 and will become the first woman to ever command the space station twice. Combined with her 2002 mission, has logged the most days in space of any female in NASA history, 377. Pictured: June 26, 2016 - Baikonur, Kazakhstan - International Space Station crew Expedition 49 backup crew members pose in front of a mural of the planets during a tour of a museum June 26, 2016 in Baikonur, Kazakhstan. Members from L-R: ESA astronaut Thomas Pesquet, Russian cosmonaut Oleg Novitskiy and American astronaut Peggy Whitson. (Credit Image: © Andrei Shelepin/NASA/ZUMAPRESS.com)