Sir Robert S. Ball's book 'Great Astronomers' is an interesting look at the lives and accomplishments of some of the most important people in the history of astronomy. From ancient times to the 19th century, the book talks about the lives of famous scientists like Ptolemy, Copernicus, Galileo, Newton, and Herschel. Ball's writing style is interesting and easy to understand, which makes it easy to understand difficult ideas about the universe. He talks...