books.google.co.uk - In 1543, Nicolaus Copernicus publicly defended his hypothesis that the earth is a planet and the sun a body resting near the center of a finite universe. But why did Copernicus make this bold proposal? And why did it matter? The Copernican Question reframes this pivotal moment in the history of science,...http://books.google.co.uk/books/about/The_Copernican_Question.html?id=iEueQqLQyiIC&utm_source=gb-gplus-shareThe Copernican Question