Story Behind the Science
Story Behind the Science: Just How Big Is the Universe? [Pdf]
Explains the history of the scientific debate and research on the topic of the size of the universe. The writer discusses the relevance of debate in the evolution of scientific theories.
The Franklin Institute
Franklin Institute: The Case Files: History of Cosmic Inquiry
A history of the science of cosmology, the study of the universe, and the scientists who did pioneering work in this field in the twentieth century.