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Apollo 11

Apollo 11 mission

Looking up at the Lunar Module Eagle on the surface, the Earth in the black sky beyond (AS11-40-5923, NASA).

Apollo 11 was the first crewed mission to land humans on the Moon. Classified by NASA as a “G Type Mission, Lunar Landing” (vehicle set SA‑506 / CSM‑107 / LM‑5), its single primary objective was to “perform crewed lunar landing and return,” with subordinate objectives of selenological inspection and sampling and of assessing astronaut/equipment capability in the lunar surface environment.

The crew were Neil A. Armstrong (Commander), Michael Collins (Command Module Pilot), and Edwin E. “Buzz” Aldrin, Jr. (Lunar Module Pilot). A Saturn V launched the stack at 9:32 a.m. EDT on July 16, 1969 from Kennedy Space Center Launch Complex 39-A — the fifth crewed Apollo flight and the third to the Moon; after translunar coast and lunar orbit insertion, the Lunar Module Eagle descended to Tranquility Base (Landing Site 2) on July 20, 1969 while Collins remained in the Command Module Columbia. Armstrong and Aldrin conducted a single two‑person EVA, deployed the EASEP experiments, and collected the first lunar samples. After lunar liftoff, rendezvous, and transearth coast, the crew splashed down in the Pacific on July 24, 1969 — 195:18:18 GET, about 8 days 3 hours after liftoff, the air-to-ground transcript’s last word — and entered quarantine. (The mission’s full as-flown spine, with the GET↔UTC conversion rule, is laid out in the nominal mission timeline.)

Eleven days later the crew walked through the whole flight, phase by phase, in the Technical Crew Debriefing (two volumes) — the candid first-person, lessons-learned record behind the planning documents and the telemetry.

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