Ключевые слова: arid, astrogeology, astronomy, barren, beige, black, brown, contrast, cosmic, day, daylight, desert, detail, dune, environment, exploration, extraterrestrial, formation, geological, geology, ground, horizon, landscape, lifeless, light, mars, natural, outdoors, pattern, planet, planetary, remote, rock, rocky, sand, scenery, shadow, space, stone, surface, tan, terrain, texture, uninhabited, vista,