science and research the universe spiral galaxy physical formulas concept knowledge education |
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| navigate by keyword : approach astronomy astrophysics calculations circular classical concept education elliptical equation formula formulas galaxy gravity infinity interstellar kinematics knowledge laws light math mathematical mathematics mechanics motion nature outer physics pupil quantum research schemes school science scientific solution space spiral stars student study teacher texture theory training trajectory universe university |
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| Science and research of the universe, spiral galaxy and physical formulas, concept of knowledge and education. Elements of this image furnished by NASA. |
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