Explorers on the Moon (1954) completes the prophetic scientific Tintin adventure that begins with Destination Moon. Herg? was breaking new ground by sending his star characters into space. Although travelling into space has become normal, even routine, today, at the beginning of the 1950s such an idea was still science-fiction. It is important to remember that the story was published in 1954, while Neil Armstrong took his first steps on the Moon in 1969.