Ключевые слова: apollo, astronaut, astronomy, atmosphere, background, challenger, cosmonaut, cosmos, craft, crater, discover, education, eleven, endeavor, environment, exploration, explore, floating, fly, future, galaxy, globe, gravitation, gravity, hello, journey, landing, lunar, man, module, moon, orbit, outer, photo, picture, planet, satellite, science, shuttle, sky, space, spacecraft, spaceman, spaceship, star, technology, travel, universe, wave, world,