Taking its inspiration from the 50th anniversary of the publication of Festinger et al.'s 1956 seminal and controversial volume When Prophecy Fails, which introduced the notion of "cognitive dissonance" as an explanation for how a small group of flying saucer devotees handled the failure of a predicted visit from space aliens, this volume looks at both theoretical and empirical studies of religious groups for whom space beings and civilizations provided an inspiration to prepare for the nearness of events that would trigger "the end of the world." Rather than examining merely the...