Vocabulary
moon, rotation, axis, faces of the moon, translation, phases of the moon, new moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, last quarter, waning crescent, electromagnetic radiation, lunar cycle, galaxies, Milky Way, universe, orbits, solar system, galaxy, patterns, revolution, rotation, waning gibbous, waxing gibbous, waning crescent, waxing crescent, first quarter, last (third) quarter, new moon, full moon, autumn, spring, summer, winter, Northern Hemisphere, Southern Hemisphere, equator, light pollution, nebulae, dark matter, black holes, telescope, Hubble telescope, orbits, elliptical, asteroids, comets, orbital motion, light year, radio astronomy techniques, Big Bang Theory, stars, nuclear fusion, supernova, protostar, stellar evolution, white dwarf, neutron star, black hole, blue giant, main sequence stars, fusion, red giant star, singularity, event horizon, spiral galaxies, elliptical galaxy, irregular galaxy, galaxy clusters, super clusters, solar system, planets, asteroids, gravity, atmosphere, celestial body, inertia, comet, meteoroid, meteor, orbit, inner planet, natural satellite, terrestrial planets, outer planet, retrograde, radio waves, planetesimal, planet, star, sun, nebula, red giant, white dwarf, gravity, solar system, planets, inner planet, gas giants, asteroids, comets, sun, hydrogen, helium