An all-encompassing presentation of humanity's many science-driven visions of the universe throughout the past 2,500 years. From the giant turtle supporting the earth in the heavens to the Big Bang theory and "cosmic strings," human beings have held wildly divergent views of the cosmos and their place in it. Now this contentious science is pulled together and explained in one fascinating reference guide. Concentrating on scientific cosmologies, the author starts his journey in sixth century Greece, and proceeds to the cosmological work of today's particle physicists. In between, he covers a dazzling array of theories and conjectures, from Aristotle's heavenly spheres to Einstein's unprecedented discoveries about the universe. Entertaining, informative, and easy to read, Cosmologies In Collision introduces a stellar cast of scientific characters. There is Galileo, whoupon discovering the moons of Jupiter shrewdly names them for his royal benefactor, the Duke of Medici. Readers will also meet the duelling astronomers Heber Curtis and Harlow Shapely, both of whose theories were demolished by the legendary Edward Hubble. Will the theories ever align? Or will "the answer" be discovered, and soon? We shall see.