Ключевые слова: adventure, astronomical, astronomy, astrophysics, atmosphere, background, beautiful, blue, christmas, color, comet, constellation, cosmic, dark, december, discovery, galaxy, heaven, high, holiday, landscape, light, meteor, milky, milky way, mountain, national, natures, nebula, new, night, park, planet, radio, research, scenic, science, sky, solar, space, star, starry, stars, system, telescope, travel, tree, universe, view, winter,