Is there a good astronomy audio book?

I am looking for a good astronomy audio book that explains how the
great astronomers made their discoveries .The book should show what
observations they made to come to their conclusions. I recently got a
book called "Dont know much about the universe". I did not like it at
all since it was just loaded with useless facts and trivia about
astronomy. Information that goes through one ear and out the next. I am
looking for a more conceptual book that shows how atronomers concluded
the earth is not flat, how to measure it's circumfrence, how moons and
planets are discovered. Does such a book (preferably on audio) exist?