Distant planets, galaxies, alien races--the universe is vast and filled with an almost unimaginable range of possibilities. But imagine it we can. Here are more than twenty stories from the most inventive writers in the field, including:

Poul Anderson * Stephen Baxter * Greg Bear * Gregory Benford * Arthur C. Clarke * Hal Clement * Greg Egan * H. B. Fyfe * R. A. Lafferty * Geoffrey A. Landis * Ursula K. Le Guin * Jack McDevitt * Larry Niven * G. David Nordley * Edgar Pangborn * Kim Stanley Robinson * James H. Schmitz * Cordwainer Smith * Michael Swanwick * James Tiptree, Jr. * John Varley * Vernor Vinge

These are the stories of discovering those possibilities-the stories of the explorers and pioneers who push the envelope further out--exciting tales of alien landscapes and adventures on far distant shores that are the heart and soul of science fiction.