“Frontiers for the American Century is a sophisticated, nuanced, and welcome study of the cultural politics of the U.S. space and Antarctic programs. … the book is a fascinating study of the complex and changing motif of the American frontier in the context of outer space and Antarctic exploration. … Spiller thus gives welcome fine structure to one of the overarching frameworks of the Space Age … .” (Steven J. Dick, Isis, Vol. 108 (1), March, 2017)