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the branch of science that studies the stars, planets, and other objects in space. |
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the belief that events in the sky – the heavens – control our lives and predict the future. |
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| a sphere of hot glowing gases that release energy in the form of heat and light |
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•the star in the center of our solar system around which Earth and 7 other planets revolve. |
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•a massive, usually spherical space object that orbits a star and shines by reflecting the star’s light. |
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•a rocky object that orbits a planet; a natural satellite. |
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| an observed pattern of stars |
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•a mass of frozen gas, cosmic dust, ice crystals, and organic material whose orbit around the Sun takes it outside the solar system. |
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•the streak of light that is produced when a meteoroid burns as it enters an atmosphere. |
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•Early Egyptian, Babylonian, Sumerian, and Greek cultures (also other cultures) who observed and recorded events in the sky. |
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•Earth centered model of the universe |
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•Sun centered model of the solar system |
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•a star with planets and other objects in orbit around it; our solar system is made up of the Sun, 8 planets, asteroids, meteoroids, comets, and other space objects. (several dwarf or minor planets) |
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•third planet from the Sun; the only known planet with life. |
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