Astronomy Archive
The Universe of the Very Small
[1.8 The Universe of the Very Small] The foregoing discussion has likely impressed on you that the universe is extraordinarily large and extraordinarily empty. On average, it is 10,000 times more empty than our Galaxy. Yet, as we have seen, […]
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The Universe on the Large Scale
[1.7 The Universe on the Large Scale] In a very rough sense, you could think of the solar system as your house or apartment and the Galaxy as your town, made up of many houses and buildings. In the twentieth […]
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A Tour of the Universe
[1.6 A Tour of the Universe] We can now take a brief introductory tour of the universe as astronomers understand it today to get acquainted with the types of objects and distances you will encounter throughout the text. We begin […]
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Astronomy [Book]
The Astronomy [Book] is a complete guide to astronomy at a university level.
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The Birth of Modern Astronomy
The birth of Modern Astronomy marks a radical, momentous shift in our understanding of the world, the universe, and reality. It was the work of the fathers of modern Astronomy — Copernicus, Galileo, Kepler, Brahe — that completely transformed our […]
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