Humans have landed on the Moon six times, all through NASA’s Apollo program between 1969 and 1972. Calling them the “top” missions misses their real significance: each successful landing built on earlier engineering, operations, and science. Apollo 13 flew around the Moon but did not land after an onboard explosion, so it is not part of the six below. Together, the landing missions carried twelve people to the surface and returned samples and observations that researchers still study.
Apollo 11: proving a landing was possible
Apollo 11 launched on 16 July 1969 with Neil Armstrong, Edwin “Buzz” Aldrin, and Michael Collins. Armstrong and Aldrin landed the lunar module Eagle in the Sea of Tranquility on 20 July while Collins remained in lunar orbit. The landing demanded manual intervention when the planned area proved hazardous. During a single moonwalk, the surface crew collected samples, photographed the site, and deployed experiments before rejoining Collins for the return to Earth.
The mission’s achievement was operational as much as symbolic. Navigation, communications, spacesuits, life support, rendezvous, and reentry all had to work as a connected system. It also occurred within Cold War competition and after the fatal Apollo 1 fire, which had forced major design and management changes.
Apollo 12: landing with precision
Launched in November 1969, Apollo 12 was struck by lightning shortly after liftoff but continued after the crew and controllers stabilized the spacecraft. Charles Conrad and Alan Bean landed near the robotic Surveyor 3 probe while Richard Gordon orbited above. Reaching a selected target demonstrated much greater landing accuracy. The astronauts visited Surveyor 3, retrieved components for study, installed scientific instruments, and collected samples from the Ocean of Storms.
Apollo 14: returning to Fra Mauro
Apollo 14 carried Alan Shepard, Edgar Mitchell, and Stuart Roosa in early 1971. Shepard and Mitchell landed in the Fra Mauro region originally intended for Apollo 13. They deployed experiments and attempted to reach the rim of Cone crater, but navigation and the demanding terrain led them to turn back shortly before the rim. Their experience showed the difficulty of judging distance and topography on an unfamiliar, nearly airless world.
Apollo 15: the first lunar rover
With Apollo 15, NASA began longer “J-class” expeditions focused more heavily on science. David Scott and James Irwin landed near Hadley Rille while Alfred Worden operated instruments from orbit. The Lunar Roving Vehicle greatly expanded surface range and allowed heavier equipment and samples to be carried. The crew explored a geologically varied area and returned the rock later nicknamed the Genesis Rock, though its interpretation has evolved with continued analysis.
Apollo 16: investigating the highlands
John Young and Charles Duke explored the Descartes highlands in April 1972 while Ken Mattingly remained in orbit. Scientists had expected evidence of volcanic processes, but returned samples indicated that impact-generated materials dominated the site. That result illustrates the value of fieldwork: a mission can be scientifically successful by disproving an attractive hypothesis.
Apollo 17: a geologist on the Moon
The final Apollo landing paired commander Eugene Cernan with lunar module pilot Harrison Schmitt, a professional geologist; Ronald Evans remained in orbit. In December 1972, Cernan and Schmitt completed three rover-supported excursions in the Taurus-Littrow valley. Their observations and samples included orange volcanic glass, evidence of ancient explosive volcanism. Apollo 17 achieved the longest surface stay and returned more lunar material than any previous Apollo mission.
A shared scientific legacy
- Later missions traveled farther and spent more time on the surface.
- Instrument packages continued transmitting after crews departed.
- Samples are preserved under controlled conditions for new analytical methods.
- Orbital crews conducted photography and remote sensing as well as supporting landers.
- The program’s risks and achievements depended on hundreds of thousands of workers, not only astronauts.
Apollo did not make the Moon familiar. It showed how much disciplined exploration can reveal—and how many questions remain for robotic and future crewed missions.
Sources: NASA: The Apollo Program; NASA Science: Moon Missions; NASA: Apollo 11; Lunar and Planetary Institute.
