Editing Tranquility Base (section)

{{Short description|Landing site of Apollo 11 on the Moon}}
{{Infobox historic site
| name                 = Tranquility Base
| type                 = Extraterrestrial landing site
| image                = Aldrin Looks Back at Tranquility Base - GPN-2000-001102.jpg
| caption              = Astronaut [[Buzz Aldrin]] with [[Lunar Module Eagle|Apollo Lunar Module ''Eagle'']] at Tranquility Base; photo taken by [[Neil Armstrong]]
| location             = [[Mare Tranquillitatis]], [[Moon]]
| area                 =
| beginning_label      = Named and founded
| beginning_date       = {{Date and age|July 20, 1969}}
| governing_body       = [[California]], [[New Mexico]]
| image_map            = Apollo 11 photo map.svg
| image_map_caption    = Map of Tranquility Base
| coordinates          = {{coord|00|41|15|N|23|26|00|E|globe:moon|format=dms|display=inline,title}}
| founder              = [[Neil Armstrong]] and [[Buzz Aldrin]]
<!-- | locmapin          = {{Location map|Moon}}   Can't get this to work... -->
| designation1         = 
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| designation1_date    = 
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}}
{{Apollo11series}}
'''Tranquility Base''' ({{langx|la|'''Statio Tranquillitatis'''}}) is the site on the [[Moon]] where, in July 1969, humans landed and walked on a [[celestial body]] other than [[Earth]] for the first time. On July 20, 1969, [[Apollo 11]] crewmembers [[Neil Armstrong]] and [[Buzz Aldrin]] landed their [[Apollo Lunar Module]] ''[[Lunar Module Eagle|Eagle]]'' at approximately 20:17:40 [[Universal Coordinated Time|UTC]]. Armstrong exited the spacecraft six hours and 39 minutes after touchdown, followed 19 minutes later by Aldrin. The [[astronauts]] spent two hours and 31 minutes examining and photographing the lunar surface, setting up several scientific experiment packages, and collecting {{convert|47.5|lb|kg}} of [[Moon rocks|dirt and rock samples]] for return to Earth. They lifted off the surface on July 21 at 17:54 UTC.

Tranquility Base was named by Aldrin and Armstrong, and first announced by Armstrong when the [[Lunar Module Eagle|Lunar Module ''Eagle'']] landed. It is located in the south-western corner of the dark lunar plain [[Mare Tranquillitatis]] ("Sea of Tranquility").<ref>{{citation |title=The Eagle Has Landed – 1969; Video Transcript for Archival Research Catalog (ARC) Identifier 45017 |year=1969 |access-date=Nov 27, 2015 |publisher=[[National Archives and Records Administration]] |url=https://www.archives.gov/files/social-media/transcripts/transcript-eagle-has-landed-1969-45017.pdf}}</ref> The U.S. states of [[California]] and [[New Mexico]] have registered Tranquility Base as a heritage site associated with them, but [[Texas]], the U.S. [[National Park Service]], and [[United Nations Educational, Scientific and Cultural Organization|UNESCO]] have declined to do so, due to the technicality that it is not located within their borders.