Was the space program the signature project of secular modernity or a symbol of humankind's perpetual quest for communion with God? "In the beginning God created the heavens and the earth . . ." In 1968 the world watched as Earth rose over the moonscape, televised from the orbiting Apollo 8 mission capsule. Radioing back to Houston on Christmas Eve, astronauts recited the first ten verses from the book of Genesis. In...