These Are the Only Men To Have Ever Walked on the Moon

Beginning in 1968, the Apollo program was a series of NASA missions that sent humans to the moon for the first time in history. Apollo 17 was the last mission in the program, splashing down on December 19, 1972. Since then, no humans have set foot on the moon, although NASA is now planning a new lunar mission, scheduled for September 2026. (These are 30 NASA inventions we still use today.)

NASA has transitioned from building its own lunar landers to a new program called Commercial Lunar Payload Services (CLPS). Under CLPS, NASA works with a handful of American companies to develop vehicles that can perform the technological and scientific functions needed to prepare for the next manned flights.

To compile a list of astronauts who landed on the moon during the Apollo program and their mission objectives, 24/7 Tempo reviewed resource material including NASA's Apollo Program page and Space.com. The Apollo 13 mission of April 1970 is not included because it was aborted in flight due to a failure of the oxygen system.

A total of six three-person crews went to the moon during NASA's Apollo missions. Twelve astronauts from these crews actually walked on the surface of the moon. Notably, all twelve moonwalkers were white American males from nine different states.

With the exception of geologist Harrison H. Schmitt (Apollo 17), all of the moonwalkers had military backgrounds. Today, only Schmitt, Charles M. Duke Jr., David R. Scott, and Buzz Aldrin are still alive (age 89, 89, 92, and 94, respectively).

The objectives of the lunar missions extended far beyond just gathering moon rocks. Beginning with Apollo 15, lunar modules gave the astronauts mobility to drive as much as 18 miles from the landing site. They performed lunar orbital experiments, probed the moon's mass and gravitational variations, deployed solar wind composition and seismic instruments, and acted as surveyors, scouting out future landing spots. Their heroic efforts gave us immeasurably valuable scientific information about the moon and its relationship to Earth.

Scroll down to read more about every time men have landed on the moon:

• Astronauts: Neil Armstrong, Edwin E. Aldrin Jr., Michael Collins

Neil Armstrong, the first person to walk on the moon, became a licensed student pilot at 16, even before he got his driver's license. He and fellow Apollo 11 crew member Edwin "Buzz" Aldrin, the second person to walk on the moon, both served during the Korean War. Before Michael Collins piloted the command module during the Apollo 11 mission, he had become the third American to walk in space during the Gemini X mission in 1966.

• Mission goals: Explore the moon's surface in the lunar module; gather rocks and other materials; set up television equipment to return signals back to earth; photograph lunar terrain; deploy solar wind composition and seismic experiments.

• Astronauts: Charles Conrad Jr., Alan L. Bean, Richard F. Gordon Jr.

The Apollo 12 mission reunited Charles Conrad and Richard Gordon. They had flown together on the Gemini 11 in 1966, a mission that set a then-record human space flight altitude of 853 miles. Conrad had flown into space twice before the Apollo 12 mission. The Apollo 12 space shot would be Alan Bean's first space fight. He would later fly on Skylab 3. The Apollo 12 crew spent almost three times as long outside the lunar module than their Apollo 11 predecessors.

• Mission goals: Explore the lunar surface; set up seismic, scientific, and engineering experiments; size up possible landing areas for future missions; retrieve remains of the Surveyor III spacecraft that had landed on the moon on April 20, 1967.

• Astronauts: Alan B. Shepard Jr., Edgar D. Mitchell, Stuart A. Roosa

The Apollo 14 mission marked Alan Shepard's return to space after becoming the first American to leave the earth's atmosphere 10 years earlier. Shepard set a distance record by walking more than 9,000 feet on the moon, pulling a cart of tools, and collecting lunar samples. He and Edgar Mitchell spent a record 33 hours and 31 minutes on the lunar surface and collected 94 pounds of material. Stuart Roosa, the pilot on the mission, would later lead NASA's space shuttle program.

• Mission goals: Explore the Fra Mauro region of the moon; deploy lunar surface scientific experiments; conduct geologic investigations; photograph potential future landing sites and deep-space phenomena, such as zodiacal light.

• Astronauts: David R. Scott, James B. Irwin, Alfred M. Worden

David Scott had already flown on the Gemini 8 and Apollo 9 space shots before Apollo 15. Scott accumulated more than 546 hours in space during his astronaut career. He and James Irwin spent almost three days on the lunar surface, exploring the Hadley Rille and Apennine Mountains regions. They drove their Lunar Rover 1 (the first lunar roving vehicle) for 18 miles (the longest distance traveled on the moon) and collected 180 pounds of lunar samples. During the return flight to Earth, pilot Alfred Worden took a spacewalk. He was deeply moved by his experiences and published a book of poetry about them in 1974.

• Mission goals: Explore the Hadley-Apennine area; activate lunar surface scientific experiments; perform lunar orbital experiments and various photographic tasks; launch a subsatellite into lunar orbit designed to investigate the moon's mass and gravitational variations.

• Astronauts: John W. Young, Charles M. Duke Jr., Thomas K. Mattingly II

John Young was the first American astronaut to make six space flights. He participated in both the Gemini and Apollo programs. He was the copilot with Virgil Grissom on Gemini 3, the first U.S. two-man spaceflight, in 1965. Young and Charles Duke were on the moon for 71 hours and spent 21 hours in extravehicular activities, gathering 211 pounds of lunar materials. After retiring from NASA, Duke became an entrepreneur, minister, and author, publishing his autobiography, "Moonwalk," in 1990. Thomas "Ken" Mattingly was set to be the pilot for the aborted Apollo 13 but was removed 72 hours before launch because he'd been exposed to German measles. He got into space as the pilot of Apollo 16. He would later be the commander of the last orbital test flight of the Space Shuttle Columbia in 1982, and the commander of the Discovery three years later.

• Mission goals: Sample materials at the unexplored Descartes region; activate surface experiments; conduct in-flight experiments and photographic tasks from lunar orbit; perform experiments involving zero gravity.

• Astronauts: Eugene A. Cernan, Harrison H. Schmitt, Ronald E. Evans

Eugene A. Cernan and Harrison H. Schmitt were the last people to leave their footprints on the moon. Cernan had flown in two prior space flights. He was the second American to walk in space during the Gemini 9 flight in 1966 and he was the pilot of the Apollo 10 mission, the last space shot before the historic moon landing by Apollo 11. Schmitt, a geologist, was the only astronaut to have walked on the moon without a military background. He later became a U.S. senator from New Mexico and wrote the book "Return to the Moon: Exploration, Enterprise, and Energy in the Human Settlement of Space." Command module pilot Ronald E. Evans walked in space for an hour and six minutes during the return flight to Earth.

Apollo 17 established the following records in lunar exploration: longest manned lunar landing flight (301 hours and 51 minutes); longest lunar surface extravehicular activities (22 hours and four minutes); and largest lunar sample return (an estimated 249 pounds).

• Mission goals: Conduct geological surveying and material sampling in the Taurus-Littrow area; build on previous scientific experiments and conduct heat-flow and biomedical tests.