PW
Peggy Whitson
NASAAmericanRetired
Most cumulative time in space by a US astronaut
Missions
3
Time in space
665d
Spacewalks
10
First flight
2002
Career span
15 yrs
Biography
Holds the record for most time in space by an American astronaut (665 days). Commanded the ISS twice and served as Chief of the Astronaut Office.
With 665 days in space, Peggy spent nearly 1.8 years off-planet — experiencing roughly 10640 sunrises from orbit.
10 spacewalks place Peggy among the most experienced EVA astronauts in history.
Career Timeline
5 Jun 2002First spaceflight
9 Apr 2017Last spaceflight
10 EVAsSpacewalks completed