The Apollo 15 mission became the fourth to land on the moon, and the ninth crewed mission in the Apollo programme. The longer time spent on the moon, the emphasis on science, and the first use of a Lunar Roving Vehicle marked it as a new departure. The crew - David Scott, James Irwin, and pilot Alfred Worden - were given extensive geological training. Scott and Irwin spent 18 1/2 hours on the moon during four long excursions on the rover, collecting 77 kilos of surface material that was brought back to earth. Worden, in lunar orbit, made measurements of the moon using cameras, spectrometers, and an altimeter. On their return journey, Worden also made the first spacewalk in deep-space. The present work offers some of the initial findings from their mission, and it was presented by the crew to Carl-Johan Clemedson, a Swedish military physician working for the Swedish Defence Research Agency. Clemedson was one of the first scientists in Sweden to take an interest in space medicine, and he became a member of the International Academy of Astronautics.