NASA Apollo 11, July 21, 1969. Buzz Aldrin deploys seismic detection equipment . Period chromogenic print on " A Kodak Paper" paper . Image: 19 x 24 cm Leaf: 20.5 x 25.5 cm All Apollo missions have deployed a scientific study station on the lunar surface. These samples and experiments constitute a decisive part of the missions. The Apollo 11 astronauts will later testify to the ease with which they have carried out these many operations in a short period of time. Their training on Earth had prepared them for extremely difficult conditions to perform these manoeuvres.