In simple terms
The Apollo 11 moon landing, on 20 July 1969, was the first time humans landed a crewed spacecraft on the Moon and walked on its surface, fulfilling a goal the United States had set less than a decade earlier. [1]
What happened
Apollo 11 launched from Florida on 16 July 1969, carrying astronauts Neil Armstrong, Buzz Aldrin, and Michael Collins toward the Moon. [1] After entering lunar orbit, Armstrong and Aldrin boarded the lunar module, named Eagle, and began their descent while Collins remained in orbit aboard the command module. As Eagle approached the surface, its automatic guidance system was steering toward a crater strewn with boulders, so Armstrong took manual control, flying the module past the hazard and touching down in the Sea of Tranquility with only about 25 seconds of fuel remaining. [2]
Hours later, Armstrong climbed down the ladder and became the first person to set foot on the Moon, describing the moment as “one small step for man, one giant leap for mankind.” [1] Aldrin followed shortly after, and the two spent roughly two and a half hours outside the module, collecting lunar samples, photographing the surface, and setting up scientific instruments before returning safely to Earth. [2]
Why it matters
The landing was the culmination of the Space Race between the United States and the Soviet Union and remains one of the most widely watched events in television history, with an estimated worldwide television audience in the hundreds of millions. [1]
Where you’ll see it
- Lunar samples still studied by scientists today
- Instruments Apollo 11 left on the Moon, including a reflector still used for laser ranging experiments
- Museum exhibits, including the Apollo 11 command module on public display
- Anniversary commemorations each 20 July
Example
The laser-ranging reflector Apollo 11 left on the lunar surface is still used today by observatories on Earth to measure the precise, slowly increasing distance between the Earth and the Moon.
Often confused with
Apollo 11 was the first crewed Moon landing, but five further Apollo missions also landed astronauts on the Moon between 1969 and 1972; it is specifically the first landing, not the only one, that Apollo 11 is remembered for.
Key facts
- Apollo 11 launched from Florida on 16 July 1969, carrying astronauts Neil Armstrong, Buzz Aldrin, and Michael Collins.1
- The lunar module, named Eagle, landed in the Sea of Tranquility on 20 July 1969, with roughly 25 seconds of fuel remaining after Armstrong manually steered past a boulder field.2
- Neil Armstrong became the first person to step onto the Moon's surface, famously describing it as one small step for man, one giant leap for mankind.1
- Armstrong and Aldrin spent about two and a half hours outside the lunar module, collecting samples and setting up scientific instruments, while Collins orbited the Moon alone in the command module.2
Quick checkWhy did Neil Armstrong have to take manual control of the lunar module during the final part of the landing?Show answer
The automatic guidance system was steering toward a boulder-strewn crater, so Armstrong took manual control to fly past it and find a safer landing spot, ultimately touching down with only about 25 seconds of fuel left.
Sources
- NASA. Apollo 11 Mission Overview. Undated (accessed 1 November 2026)
- Encyclopaedia Britannica. Apollo 11. Undated (accessed 1 November 2026)
Editorially reviewed by Last reviewed November 1, 2026Researched and drafted with AI assistanceReport an issue