Nicolas Copernicus - A short biography (1473-1543). Nicolaus Copernicus - Discovered that the Earth is not in the center of the Universe but it circles the Sun. Facts of life and pictures of the Polish astronomer. Nicolaus Copernicus - Introduces the father of modern astronomy. Nicolaus Copernicus - Life and works. Nicolaus Copernicus - Wikipedia article providing an overview of the astronomer's early life, his education, and his revolutionary theory that the earth was not the center of the universe. Copernicus's Grave - Articles by Michal Kokowski, from the Institute for the History of Science, Polish Academy of Sciences, on quests to identify Copernicus's grave. Modern History Sourcebook: Nicolas Copernicus - Gives excerpts from the scientist's works. Lists the astronomer's reasons as to why the earth must be round, such as pointing to the different times that peoples from different geographic regions see the moon appear at night. Squashed Copernicus - An abridged version of "Revolutions". Includes study notes, diagrams and glossary.