The final test was at hand. The instrument ship was to be sent out into space, controlled from this sunken concrete bunker, to find out if the flimsy bodies of men could endure there. Jennings visualized other bunkers scattered through the area, observation posts, and farther away the field headquarters with open telephone lines to the Pentagon, and beyond that a world waiting for news of the test—and not everyone wishing it well. The monotonous buzz of the field phone pulled him away from his f