flying saucer, Is that an airplane in the sky, or is it a ________?, intelligence, Are aliens more _________ than us?, martian, Any life that people find on Mars will be called ________., planet, Our _______ is called Earth., ray gun, In the movie we watched, the alien killed people with a ________., solar system, The sun is at the center of our _____________, telescope, You can see things that are far away with a _________, universe, The _________ is very big. It means everything!

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