alien quadrilogy (film series), encounters (tv program), milky way (galaxy), documentary films, new, aliens, ufo, satellite (literature subject), film (media genre), science fiction, space, orbit (orbit type), nasa (spacecraft manufacturer), spacetime, science (tv genre), space shuttle discovery (spacecraft), earth, earth (planet), sun, pluto, documentary (tv genre), spacecraft (industry), universe (quotation subject), new horizons (space mission), pluto (astronomical discovery)