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The relationship between the 'settlers' - descendants of earth men - and the 'spacers' grows tense and Gladia finds to her dismay that responsibility for galactic peace lies wit

Two young boys find some very unusual new pets in this short story from a Grand Master of Science Fiction.

One moment Joseph Schwartz is a happily retired tailor in Chicago, 1949. The next he's a helpless stranger on Earth during the heyday of the first Galactic Empire.

A collection of the best science fiction stories published between 1929 and 1964 as selected by Science Fiction Writers of America.

In the Second Foundation, Isaac Asimov addresses the phenomenon of genetic mutation and its potential danger to a civilization.

In the twenty-second century Earth obtains limitless, free energy from a source science little understands: an exchange between Earth and a parallel universe, using a process devised by the aliens.

For twelve thousand years the Galactic Empire has ruled supreme. Now it is dying.