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Our Place In Space (Sun, Moon, Murcury, Venus, Earth, Mars, jupiter,…
Our Place In Space (Sun , Moon, Murcury , Venus, Earth, Mars, jupiter, Saturn, Uranus, Neptune, Pluto, Astronomical Unit, Big Bang theory, Constellation, Doppler effect or Doppler Shift, Eclipse (solar and lunar), Electromagnetic and spectrum, Galaxy, Hertzsprung and Russel Diagram , Illuminated, Light year, Luminosity, Milky Way Galaxy, Moon Phase, Revolve, Rotate, Spectroscope, Visible light)