[Free Registration/Login Required] This flipchart discusses What occurred in the 1500's to change science? Changes in science beliefs began with the universe and continued to development of the scientific method.

[Free Registration/Login Required] Introduction and links to information and online documentaries about gravity.

A chronology of Solar System discoveries made from before the 1600s to now.

An explanation of the rationale behind the trial of Galileo by the Roman Catholic Inquisition for his scientific theories of heliocentrism. He was convicted of heresy and placed under house arrest, eventually confessing to his alleged...

This site from The Galileo Project of Rice University contains information relating to Copernicus's sun-centered solar system theory. Pictures are provided throughout this article along with links to additional information.