1248956 Apollo 11 Lunar Module Pilot Buzz Aldrin\'s boot and bootprint. 1969 (b/w photo) by American School, (20th century); Private Collection; (add.info.: Aldrin photographed this bootprint about an hour into their lunar extra-vehicular activity on July 20, 1969, as part of investigations into the soil mechanics of the lunar surface. This photo would later become synonymous with humankind\'s venture into space.); Prismatic Pictures ; American, out of copyright.