Ключевые слова: astronomy, background, beautiful, beauty, black, blue, bright, color, constellation, cosmic, cosmos, dark, exploration, galaxy, glowing, heaven, hill, landscape, light, milky, mountain, natural, nature, night, nocturnal, outdoor, peak, planet, reflection, rock, scene, scenic, science, sky, space, star, starlight, starry, summer, top, tourism, tranquil, tranquility, travel, universe, view, water, way, yellow,