Abstract

The paper discusses certain discrepancies between The Copernican Revolution (1957) and The Structure of Scientific Revolutions (1962) by Thomas Kuhn. It shows that they present a different consideration of extra-scientific factors, that in the former have a higher explanatory weight. It states that in 1957 Kuhn applies a casuistical historiography, focused on the Copernican revolution, and in 1962 a structural historiography, focused on the invariable features of scientific revolutions. The paper concludes that the differences between these two works are significant enough so as not to be considered an expression of the same view of science.