Important Dates and Discoveries
Cosmological Theories Through History
The Universe By Numbers
Glossary of Terms
A Few Random Facts
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I have presented the Main Topics under the following general headings:
I have treated each of them in the form of extended essays, split into sub-sections, because these are large and complex subjects with several linked aspects to them, and because a certain amount of explanatory detail and development is required for their understanding. If possible, it is therefore advisable to read the sections in order, although a Topic Index is always available on each page if you prefer to skip some of the sections.
I have tried wherever possible to use plain and simple words and explanatory analogies, but a certain amount of technical terminology and jargon is unavoidable in this subject. For convenience, I have put in handy popup "sticky boxes" (green links like this one) for quick and simple explanations of the most common technical terms and important concepts, and also a self-contained Glossary of Terms page.
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Introduction | Main Topics | Important Dates and Discoveries | Important Scientists | Cosmological Theories | The Universe By Numbers | Glossary of Terms | A Few Random Facts | Sources