The second volume of this ground-breaking trilogy covers the reigns of Ptolemy II, III, IV, V and VI, who between them reigned for a century. Ptolemy III's rule

Ptolemy was the most important physical scientist of the Roman Empire, and for a millennium and a half his writings on astronomy, astrology, and geography were

"A major contribution to the study of Roman imperialism and ancient international relations."—John Rich, University of Nottingham

The story of planetary research from ancient astronomers to more recent spacecraft missions.