We explore the evolution of astronomy, from Persian astronomer al-Tusi to Copernicus and the space scientists of today. Jim al-Khalili reveals how scholars from the Islamic world played a crucial role in astronomy and navigation, influencing later astronomers in the renaissance. Imagine trying to make sense of the universe before telescopes were even invented. In this episode of Science in the Golden Age, we examine ancient maps dating back to the 9th century at Istanbul's Museum of the History of Science and Technology in Islam