Ключевые слова: alien, arid, beds, bottom, canyon, clay, climate, cracks, desert, dried up, dry, erosion, exploration, extraterrestrial, flow, fluids, graben, grooves, horizon, illustration, labyrinthus, landscape, marineris, mars, martian, nature, noctis, planet, ravines, red, reservoir, river, riverbeds, sand, seasonal, seasonality, sky, solar, space, stream, surface, system, terrain, traces, valles, water, watercourse,