Peggy Whitson

Peggy Annette Whitson is an American biochemistry researcher, and astronaut working for Axiom Space. She retired from NASA in 2018, after serving as Chief Astronaut. Over all her missions, Whitson accumulated a total of 675 days in space, more than any other American or woman. Her first NASA space mission was in 2002: an extended stay aboard the International Space Station as a crew member of Expedition 5.