=== Tredje rumflyvning (Ekspedition 50/51/52) ===
[[Fil:ISS-50 EVA-1 (e) Peggy Whitson.jpg|thumb|Whitson under en [[rumvandring]] under ekspedition 50]]
Peggy Whitson ankom atter til Den Internationale Rumstation (ISS) den 19. november 2016,<ref>{{Cite web|url=https://blogs.nasa.gov/spacestation/2016/11/19/welcome-aboard-new-arrivals-make-six-expedition-50-crew-members/|title=Welcome Aboard! New Arrivals Make Six Expedition 50 Crew Members {{!}} Space Station|website=blogs.nasa.gov|access-date=2016-11-24|archive-date=25. november 2016|archive-url=https://web.archive.org/web/20161125044035/https://blogs.nasa.gov/spacestation/2016/11/19/welcome-aboard-new-arrivals-make-six-expedition-50-crew-members/|url-status=dead}}</ref> under Ekspedition 50/51, der blev opsendt den 17. november 2016, fra [[Bajkonur-kosmodromen]] i [[Kasakhstan]].<ref>{{cite web |url=http://www.jsc.nasa.gov/Bios/htmlbios/whitson.pdf |title=Biography of PEGGY A. WHITSON|accessdate=16. februar 2016|publisher=NASA|year=2016}}</ref> Hun var øverstbefalende på Ekspedition 51.<ref>{{cite web|url=http://www.nasa.gov/press-release/nasa-space-station-partners-announce-crew-members-for-missions-in-2017 |title=NASA, Space Station Partners Announce Crew Members for Missions in 2017|accessdate=16. februar 2016|publisher=NASA|date=6. august 2015}}</ref><ref>{{cite web|url=http://www.collectspace.com/ubb/Forum18/HTML/001284.html|title=ISS Expedition 51 mission patch|accessdate=16. februar 2016|publisher=collectspace.com|date=5. december 2015}}</ref> Med opsendelsen med Ekspedition 50/51 blev Whitson i en alder af 56 år den ældste kvinde i rummet.<ref>{{cite web|url=http://abcnews.go.com/US/nasas-peggy-whitson-oldest-woman-space/story?id=43641385 |title=NASA's Peggy Whitson Becomes Oldest Woman in Space - ABC News |publisher=Abcnews.go.com |date= |accessdate=2016-11-19}}</ref><ref>{{cite web|author=Chiara Palazzo Associated Press |url=http://www.telegraph.co.uk/news/2016/11/18/nasa-veteran-peggy-whitson-becomes-the-oldest-woman-in-space-as/ |title=Nasa veteran Peggy Whitson becomes the oldest woman in space as she blasts off for ISS |publisher=Telegraph.co.uk |date= |accessdate=2016-11-19}}</ref> Under missionen satte hun rekord som den amerikaner, der har opholdt sig flest dage i rummet. Den hidtidige rekord var 534 dage sat af [[Jeff Williams]].<ref>{{Cite news|url=http://www.bbc.co.uk/news/world-us-canada-38021422|title=Peggy Whitson: Oldest woman in space blasts off to ISS|date=2016-11-17|newspaper=BBC News|language=en-GB|access-date=2016-12-04}}</ref> I begyndelsen af april 2017 blev missionen forlænget med yderligere tre måneder, og hun vendte tilbage til Jorden med en Soyuz-kapsel, der landede i Kasakstahn den [[2. september]] [[2017]].<ref>{{cite web|url=|title=Nasa record breaker back on Earth after logging 665 days in space|first=|last=|date=3. september 2017|publisher=The Guardian|accessdate=3. september 2017}}</ref>
Levende_personer