Ключевые слова: achievement, adventure, alien, astronaut, atmosphere, canyon, challenge, colonization, concept, cosmonaut, cosmos, costume, desert, discovery, explorer, exploring, fantasy, fiction, future, gravity, helmet, hill, journey, land, landscape, man, mars, martian, mission, nature, net, outer, people, person, planet, red planet, science, scifi, sky, space, space exploration, space suit, space travel, spaceman, success, suit, surface, survival, technology, travel, valles marineris, walking,