NATIONAL MOON DAY National Moon Day on July 20 commemorates the day man first walked on the moon in 1969. NASA reported the moon landing as being “...the single greatest technological achievement of all time.”#NationalMoonDay On July 20, 1969, Apollo 11 carried the first humans to the moon. Six hours after landing on the moon, American Neil Armstrong stepped onto the lunar surface. He spent two and a half hours outside the spacecraft. Buzz Aldrin soon followed, stepping onto the lunar surface. After joining Armstrong, the two men collected 47.5 pounds of lunar material. Their specimens would make the journey...