Ключевые слова: academy, astronomer, astronomical, astronomy, background, cartoon, character, college, comet, concept, cosmos, decorative, discovery, earth, education, flat, galaxy, header, illustration, isolated, knowledge, man, moon, night, observatory, old, people, planet, planetarium, profession, research, school, science, scientist, sky, solar, space, spyglass, star, study, symbol, system, telescope, theory, typographic, universe, uranus, venus, vision,