Ключевые слова: astronomy, atmosphere, balance, beauty, biosphere, blue, bodies, brightness, celestial, climate, continents, cosmos, distance, earth, ecological, ecology, environment, exploration, galaxy, geology, habitats, hydrogen, infinity, landscape, life, light, nature, night, oceans, orbit, oxygen, planet, planetary, rotation, science, sky, solar, space, starfield, stars, surface, system, terrestrial, topography, tranquility, universe, view, wildlife,