# Apollo 11, July 1969: Landing at Tranquility Base > Follow the first crewed lunar landing from the powered descent to the surface walk and safe return, with the crew, spacecraft, and landing site connected. Canonical URL: https://aristotree.com/sam_r84/apollo-11-july-1969-landing-at-tranquility-base Language: en Creator: sam_r84 Last modified: 2026-10-08T08:11:22.175Z Concepts: 10 Relationships: 14 This is a public, user-curated knowledge graph. Follow the cited sources when verifying claims. ## Concepts ### Apollo command and service module The Apollo command and service module (CSM) was one of two principal components of the United States Apollo spacecraft, used for the Apollo program, which landed 12 astronauts on the Moon between 1969 and 1972. Topics: history, historical episode Sources: - https://en.wikipedia.org/wiki/Apollo_command_and_service_module - https://en.wikipedia.org/wiki/Apollo_command_and_service_module?action=history - https://creativecommons.org/licenses/by-sa/4.0/ ### Neil Armstrong Neil Alden Armstrong was an American astronaut and aeronautical engineer who, as the commander of the 1969 Apollo 11 mission, became the first person to walk on the Moon. He was also a naval aviator, test pilot and university professor. Topics: history, historical episode Sources: - https://en.wikipedia.org/wiki/Neil_Armstrong - https://en.wikipedia.org/wiki/Neil_Armstrong?action=history - https://creativecommons.org/licenses/by-sa/4.0/ ### Apollo 11, July 1969: Landing at Tranquility Base Follow the first crewed lunar landing from the powered descent to the surface walk and safe return, with the crew, spacecraft, and landing site connected. Topics: history, historical episode Sources: - https://en.wikipedia.org/wiki/Apollo_11 - https://en.wikipedia.org/wiki/Apollo_11?action=history - https://creativecommons.org/licenses/by-sa/4.0/ - https://www.nasa.gov/mission/apollo-11/ ### Saturn V The Saturn V is a retired American super heavy-lift launch vehicle developed by NASA under the Apollo program for human exploration of the Moon. The rocket was human-rated, had three stages, and was liquid-fueled. Topics: history, historical episode Sources: - https://en.wikipedia.org/wiki/Saturn_V - https://en.wikipedia.org/wiki/Saturn_V?action=history - https://creativecommons.org/licenses/by-sa/4.0/ ### Tranquility Base Tranquility Base is the site on the Moon where, in July 1969, American NASA astronauts landed and walked on a celestial body other than Earth for the first time. Topics: history, historical episode Sources: - https://en.wikipedia.org/wiki/Tranquility_Base - https://en.wikipedia.org/wiki/Tranquility_Base?action=history - https://creativecommons.org/licenses/by-sa/4.0/ ### Michael Collins (astronaut) Michael Collins was an American astronaut who flew the Apollo 11 command module Columbia around the Moon in 1969 while his crewmates, Neil Armstrong and Buzz Aldrin, made the first crewed landing on the surface. S. Air Force Reserve. Topics: history, historical episode Sources: - https://en.wikipedia.org/wiki/Michael_Collins_(astronaut) - https://en.wikipedia.org/wiki/Michael_Collins_(astronaut)?action=history - https://creativecommons.org/licenses/by-sa/4.0/ ### Lunar Module Eagle Lunar Module Eagle (LM-5) is the Apollo Lunar Module that was the first crewed lunar lander flown by humans to the Moon. Part of the 1969 Apollo 11 mission, it was named after the bald eagle, which was featured prominently on the mission insignia. Topics: history, historical episode Sources: - https://en.wikipedia.org/wiki/Lunar_Module_Eagle - https://en.wikipedia.org/wiki/Lunar_Module_Eagle?action=history - https://creativecommons.org/licenses/by-sa/4.0/ ### Buzz Aldrin Buzz Aldrin is an American former astronaut, aeronautical engineer, and fighter pilot. He was the second person to walk on the Moon after mission commander Neil Armstrong. Topics: history, historical episode Sources: - https://en.wikipedia.org/wiki/Buzz_Aldrin - https://en.wikipedia.org/wiki/Buzz_Aldrin?action=history - https://creativecommons.org/licenses/by-sa/4.0/ ### Margaret Hamilton (software engineer) Margaret Elaine Hamilton is an American computer scientist. She directed the Software Engineering Division at the MIT Instrumentation Laboratory, where she led the development of the on-board flight software for NASA's Apollo Guidance Computer for the Apollo program. Topics: history, historical episode Sources: - https://en.wikipedia.org/wiki/Margaret_Hamilton_(software_engineer) - https://en.wikipedia.org/wiki/Margaret_Hamilton_(software_engineer)?action=history - https://creativecommons.org/licenses/by-sa/4.0/ ### Mission control center A mission control center is a facility that manages space flights, usually from the point of launch until landing or the end of the mission. It is part of the ground segment of spacecraft operations. Topics: history, historical episode Sources: - https://en.wikipedia.org/wiki/Mission_control_center - https://en.wikipedia.org/wiki/Mission_control_center?action=history - https://creativecommons.org/licenses/by-sa/4.0/ ## Relationships - Apollo 11, July 1969: Landing at Tranquility Base — related_to → Neil Armstrong: Mission commander - Apollo 11, July 1969: Landing at Tranquility Base — related_to → Buzz Aldrin: Lunar module pilot - Apollo 11, July 1969: Landing at Tranquility Base — related_to → Michael Collins (astronaut): Command module pilot - Apollo 11, July 1969: Landing at Tranquility Base — related_to → Lunar Module Eagle: Lunar lander - Apollo 11, July 1969: Landing at Tranquility Base — related_to → Tranquility Base: Landing site - Apollo 11, July 1969: Landing at Tranquility Base — related_to → Saturn V: Launch vehicle - Apollo 11, July 1969: Landing at Tranquility Base — related_to → Apollo command and service module: Return spacecraft - Apollo 11, July 1969: Landing at Tranquility Base — related_to → Mission control center: Flight control - Apollo 11, July 1969: Landing at Tranquility Base — related_to → Margaret Hamilton (software engineer): Flight software leader - Neil Armstrong — related_to → Lunar Module Eagle: Commanded Eagle - Buzz Aldrin — related_to → Lunar Module Eagle: Piloted Eagle - Lunar Module Eagle — related_to → Tranquility Base: Landed here - Michael Collins (astronaut) — related_to → Apollo command and service module: Piloted command module - Saturn V — related_to → Lunar Module Eagle: Launched the lander