Ключевые слова: abstract, astronomer, astronomy, background, barred, black, blue, celestial, constellation, cosmos, creation, deep, discovery, earth, explosion, fantasy, galaxy, glow, hydrogen, infinity, interstellar, light, m101, man, messier 101, milky, nebula, ngc, night, orbit, outer, pinwheel galaxy, planetary, plasma, science, silhouette, sky, space, spiral, spiral galaxy, star, system, telescope, universe, ursa major, way, whirlpool galaxy,