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Take a journey through fascinating outer worlds that lay beyond the earth's sphere.We begin with a unifying overview of the Universe that provides a broad context into which we place the objects of our planetary system. The course then divides into four overlapping portions, exploring the Earth and the layout of the sky, examining the physical laws that control what we see, learning the natures of the celestial bodies, and examining the planets themselves to reveal how they are constructed. The final segment brings us back to the beginning and what it means to us as we look outward from Earth.