Editing Space Shuttle Endeavour (section)

=== Final flights ===
[[File:Platforms Around Endeavour In Orbiter Processing Facility-2.jpg|thumb|Platforms around ''Endeavour'' in the [[Orbiter Processing Facility]]-2]]
[[File:Endeavour docked to ISS.jpg|thumb|''Endeavour'' (left) docked to the [[International Space Station]] on May 23, 2011, during its final mission]]
''Endeavour'' flew its final mission, STS-134, to the [[International Space Station]] (ISS) in May 2011. After the conclusion of STS-134, ''Endeavour'' was formally decommissioned.<ref>{{Cite web |date=June 30, 2014 |title=OV-105 "Endeavour" |url=http://californiasciencecenter.org/exhibits/air-space/space-shuttle-endeavour/ov-105-endeavour |access-date=September 12, 2016 |website=California Science Center |language=en-US}}</ref>

STS-134 was intended to launch in late 2010, but on July 1 NASA released a statement saying the ''Endeavour'' mission was rescheduled for February 27, 2011.<ref>{{Cite web |date=July 1, 2010 |title=NASA Updates Shuttle Target Launch Dates For Final Two Flights |url=http://www.nasa.gov/home/hqnews/2010/jul/HQ_10-157_STS_Launch_Dates.html |url-status=dead |archive-url=https://web.archive.org/web/20120612111532/http://www.nasa.gov/home/hqnews/2010/jul/HQ_10-157_STS_Launch_Dates.html |archive-date=June 12, 2012 |access-date=May 20, 2012 |website=NASA}}</ref>

"The target dates were adjusted because critical payload hardware for STS-133 will not be ready in time to support the previously planned 16 September launch," NASA said in a statement. With the ''Discovery'' launch moving to November, ''Endeavour'' mission "cannot fly as planned, so the next available launch window is in February 2011," NASA said, adding that the launch dates were subject to change.<ref>{{Cite web |date=July 1, 2010 |title=NASA reschedules two final space shuttle launches |url=http://www.space-travel.com/reports/NASA_reschedules_two_final_space_shuttle_launches_999.html |access-date=November 20, 2016 |website=Space Travel}}</ref>

The launch was further postponed until April to avoid a scheduling conflict with a Russian supply vehicle heading for the International Space Station.<ref>{{Cite news |date=April 4, 2011 |title=Unmanned Russian cargo ship heads for space station |url=http://articles.cnn.com/2011-04-04/us/shuttle.endeavor.delay_1_russian-cargo-ship-international-space-station-insulation-foam?_s=PM:US |url-status=dead |archive-url=https://web.archive.org/web/20120114205123/http://articles.cnn.com/2011-04-04/us/shuttle.endeavor.delay_1_russian-cargo-ship-international-space-station-insulation-foam?_s=PM:US |archive-date=January 14, 2012 |work=CNN}}</ref> STS-134 did not launch until May 16 at 08:56 [[Eastern Time Zone|EDT]].<ref>{{Cite web |title=STS-134 |url=http://www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts134/main/index.html |access-date=May 20, 2012 |publisher=NASA}}</ref>

''Endeavour'' landed at the [[Kennedy Space Center]] at 06:34 [[Coordinated universal time|UTC]] on June 1, 2011, completing its final mission.<ref name="finallanding">{{Cite news |date=June 1, 2011 |title=Endeavour completes final mission; one flight left for NASA |url=http://edition.cnn.com/2011/US/06/01/nasa.endeavour.lands/ |archive-url=https://web.archive.org/web/20120114180839/http://edition.cnn.com/2011/US/06/01/nasa.endeavour.lands/ |url-status=dead |archive-date=January 14, 2012 |access-date=June 3, 2011 |work=CNN}}</ref> It was the 25th night landing of a shuttle.<ref>{{Cite news |last=Dunn |first=Marcia |date=May 31, 2011 |title=Endeavour's last landing sparks pride and sadness |url=https://www.nbcnews.com/id/43228059 |url-status=live |archive-url=https://web.archive.org/web/20131209163147/http://www.nbcnews.com/id/43228059/ |archive-date=December 9, 2013 |access-date=May 20, 2012 |work=NBC News}}</ref><ref>{{Cite news |last=Harwood, William |date=June 1, 2011 |title=Endeavour ends final mission with smooth landing; The Space Shot |url=http://news.cnet.com/8301-19514_3-20067830-239.html |url-status=dead |archive-url=https://web.archive.org/web/20200326033405/https://www.cnet.com/19514_3-20067830-239.html |archive-date=March 26, 2020 |access-date=May 20, 2012 |work=CNET News}}</ref> Over its flight career, ''Endeavour'' flew {{convert|122,883,151|mi|km}} and spent 299 days in space.<ref>{{Citation |title=Space Shuttle Era Facts |date=July 5, 2011 |work=NASA |url=https://www.nasa.gov/pdf/566250main_2011.07.05%20SHUTTLE%20ERA%20FACTS.pdf |access-date=August 2, 2016 |archive-date=July 14, 2019 |archive-url=https://web.archive.org/web/20190714112826/https://www.nasa.gov/pdf/566250main_2011.07.05%20SHUTTLE%20ERA%20FACTS.pdf |url-status=dead }}</ref> During ''Endeavour's'' last mission, the Russian spacecraft Soyuz TMA-20 departed from the ISS and paused at a distance of {{convert|200|m}}. Italian astronaut Paolo Nespoli took a series of photographs and videos of the ISS with ''Endeavour'' docked.<ref>{{Cite web |date=May 23, 2011 |title=Soyuz TMA-20 captures historic photography prior to perfect landing |url=http://www.nasaspaceflight.com/2011/05/soyuz-tma-20-historic-photographic-event-landing/ |access-date=October 12, 2012 |website=NASASpaceFlight}}</ref> This was the second time a shuttle was photographed docked and the first time since 1996. Commander [[Mark Kelly]] was the last astronaut off ''Endeavour'' after the landing, and the crew stayed on the landing strip to sign autographs and pose for pictures.<ref>{{Cite news |date=June 1, 2011 |title=Next-to-last space shuttle flight lands on Earth |url=https://www.deseret.com/2011/6/1/20195388/next-to-last-space-shuttle-flight-lands-on-earth |access-date=February 9, 2023 |publisher=Deseret News}}</ref>

STS-134 was the penultimate Space Shuttle mission; [[STS-135]] was added to the schedule in January 2011, and in July ''Atlantis'' flew for the final time.<ref>{{Cite web |date=July 27, 2011 |title=STS-135: The Final Voyage |url=https://www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/launch/sts-135_mission-overview.html |access-date=February 3, 2017 |website=NASA |archive-date=July 27, 2019 |archive-url=https://web.archive.org/web/20190727080027/https://www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts135/launch/sts-135_mission-overview.html |url-status=dead }}</ref>