A fascinating guide to 'the new geography' Beginning with man's narrow vision of flat earth, the renowned science writer Isaac Asimov traces the steps by which our grasp of the Universe has broadened and deepened to its present state. Now man pictures an expanse of 26-billion light years in diameter, and approaches the realization of his ancient dream of conquering all of it.

Discus Books Published by Avon Books, 1968 Eleventh Printing