Date of Award

Spring 1974

Document Type



Earth Science

First Reader



Anyone who has gazed into the starry sky with awe and amazement has often wondered what holds things together, where space ends and if there is no end, what wonders are beyond. The planets that are contained in this solar system and the growth of theories of the causes of the motions of these bodies are just some of the many wonders that a person can research.

In this work, I have intended to trace more or less a history of man's theories that govern the motions of the planets. I must admit that I will not cover by far all the theories of the growth of theories in this paper, but I will treat those that, to me, had the greatest influence on the generation preceding and including our time of modern astronomy.



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