Among seven Apollo moon landing missions, only one did not land men on the moon. Apollo 11 lunar module on July 20, 1969 to become the first human being to step foot on the moon. "That's one small step for man, one giant leap for mankind." But this first was not the last for NASA. The United States would go on to complete six crewed missions to the moon that landed a total of 12 astronauts (all men) from 1969 to 1972 in a series of Apollo missions numbering up to Apollo 17. The only mission that failed to reach the moon's surface was Apollo 13, which suffered a critical power and oxygen failure mid-flight, and was forced to make a heroic emergency reentry.