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A superlative anthology featuring some of the finest science fiction works ever published features stories by such masters as Robert A. Heinlein, Arthur C. Clarke, Isaac Asimov, Poul Anderson, Gordon R. Dickson, and others, in a collection that features tales selected for their ground-breaking exploration of new worlds. An anthology with stories by authors such as Robert A. Heinlein, Arthur C. Clarke, Isaac Asimov, Poul Anderson, and Gordon R. Dickson, features tales selected for their exploration of new worlds.