The central question of this book is how humanity developed its understanding of the universe. Harrison traces the historical and philosophical development of cosmological thought, from ancient myths to modern scientific theories. He examines the key figures, discoveries, and conceptual shifts that have shaped our view of the cosmos, exploring the interplay between observation, theory, and cultural context.

This book is regarded as a comprehensive and authoritative historical account of cosmology. It is praised for its thoroughness in detailing the development of scientific thought about the universe, making complex ideas accessible. The work is noted for its balanced approach, integrating scientific progress with the broader intellectual and cultural history of its time. It serves as a valuable resource for understanding the origins of modern cosmological understanding.