Model of lunar landscape with space module, 1965.
© National Aeronautics & Space Administration / Science & Society
Photograph of the lunar landscape showing models made using a technique developed by Dr Eugene M Shoemaker of the US Geological Survey. The models were made by a photometric scaling process. The scaling technique uses the different brightness levels in the picture transmitted by NASA's Ranger VII spacecraft to obtain the relative height or depth of hills and craters. The scale is 1:20 (1"-0.6 meters - 1"-1 2/3 ft)