Outer Space Crossword Puzzle

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QUESTIONS LIST:

comet : a frozen mass of different types of ice and dust orbiting the sun
asteroid : a rocky mass up to several hundred kilometers wide that revolves around the sun
orbit : the path an object takes as it revolves around a star, planet, or moon
planet : a large, round object that revolves around a star and has cleared the region around its orbit
outer planets : the planets beyond mars
star : a huge ball of very hot gas that gives off energy
moon : a natural object that revolves around a planet
milky way : our home galaxy
inner planets : any of the closest four planets to the sun
galaxy : a huge system of gas, dust and objects held together by gravity
space probe : a spacecraft that gathers information without a crew
solar system : the sun, and its planets, along with the moons, asteroids, and comets
dwarf planet : a large, round object that revolves around the sun, but had not cleared the region around its orbit