Geocentric Theory vs. Heliocentric Theory

Throughout history, two main theories of the motion of the planets came about. These theories are geocentric and heliocentric. Chapter 11 from the labbook* for ES 111 at Emporia State University helps one understand these two theories. To learn more about this subject, check out the links below.

You can email me at jrod@carrollsweb.com.

*Johnston, P., Aber, S.W., & Ye, H. (1996). Introduction to earth science lab. Edina, MN: BurgessPublishing.

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