On July 20, 1969, two Americans walked on the Moon, and National Moon Day on Tuesday, July 20, 2027, marks the anniversary. Their mission, Apollo 11, still shapes how people think about space.
The Date and the 1971 Proclamation
It isn’t a federal holiday. Still, the date once had White House backing.
President Richard Nixon signed Proclamation 4067 in 1971, naming July 20 of that year National Moon Walk Day. Congress had asked for it in Senate Joint Resolution 101.
Eight Days in July
Apollo 11 lifted off at 8:32 a.m. Central time on July 16, 1969. Neil Armstrong commanded, with Buzz Aldrin as lunar module pilot and Michael Collins flying the command module, NASA says.
Eagle carried Armstrong and Aldrin down to the Sea of Tranquility four days later, while Collins circled overhead in the command module, Columbia. The landing call came at 3:17 p.m. Central time: “Houston, Tranquility Base here, the Eagle has landed.”
Trouble nearly struck on the way down. A navigation error had carried Eagle about 7 kilometers past its target, and five computer alarms went off during the descent. The computer was steering toward a boulder field around West Crater, so Armstrong took manual control and flew past it.
Mission Control thought about 17 seconds of fuel remained. Later analysis showed Eagle actually had about 45 seconds left.
On the surface
Armstrong stepped onto the Moon at 9:56 p.m. Central time. His first words on the surface were these:
“That’s one small step for [a] man, one giant leap for mankind.”
The Lunar and Planetary Institute puts the moonwalk at 2 hours and 31 minutes. Neither man strayed more than about 60 meters from the lander.
They gathered 21.6 kilograms of rock and soil. They also set up a seismometer and a laser retroreflector for measuring the Earth-Moon distance. The pair also planted a U.S. flag, unveiled a plaque and spoke briefly with President Nixon.
All told, the lander stayed on the surface for about 21.6 hours. Apollo 11 circled the Moon 31 times before heading home. It splashed down in the Pacific southwest of Hawaii on July 24, and the whole flight took 8 days and 3 hours.
What the Landing Still Means
Nixon’s proclamation framed the goal as working “to explore the unknown and advance scientific knowledge for the benefit of all mankind.” It asked Americans to mark the day “with appropriate ceremonies, activities, and programs.”
Back on Earth, the rocks paid off. Basalts in the haul formed 3.6 to 3.9 billion years ago and are unusually rich in titanium. None of the samples showed signs of life or water.
Crews are heading back. NASA’s Artemis II launched on April 1, 2026, from Kennedy Space Center, carrying four astronauts around the Moon aboard the Orion spacecraft.
Reid Wiseman, Victor Glover and Christina Koch flew for NASA, joined by Jeremy Hansen of the Canadian Space Agency. It was the first crewed lunar flyby in 50 years.
Ways to Celebrate National Moon Day
- Find the Moon tonight and look for the Sea of Tranquility, where Eagle touched down.
- Watch NASA’s Apollo 11 footage with friends or family.
- Visit a science museum that displays space artifacts.
- Scan the lunar surface with a pair of binoculars.
- Read the mission transcripts in NASA’s archive.
- Build a model rocket or a cardboard lander with kids.
- Follow NASA’s Artemis missions online.
Frequently Asked Questions
Did Collins walk on the Moon?
No. He stayed in lunar orbit while his crewmates explored.
How long was the Artemis II flight?
Just over nine days, ending with splashdown on April 10.
What else did Apollo 11 leave on the Moon?
A solar wind collector, which caught particles streaming from the Sun.
Were the astronauts quarantined?
Yes, for 21 days, even though scientists considered lunar life unlikely.