Book excerpt: In the new millennium, what secrets lay beyond the far reaches of the universe? What mysteries belie the truths we once held to be self evident? The world of science fiction has long been a porthole into the realities of tomorrow, blurring the line between life and art. Now, in The Year's Best Science Fiction Twenty-Fifth Annual Collection the very best SF authors explore ideas of a new world. This venerable collection of short stories brings together award winning authors and masters of the field such as Robert Reed, Ian McDonald, Stephen Baxter, Michael Swanwick, Paolo Bacigalupi, Kage Baker, Walter Jon Williams, Alastair Reynolds, and Charles Stross. And with an extensive recommended reading guide and a summation of the year in science fiction, this annual compilation has become the definitive must read anthology for all science fiction fans and readers interested in breaking into the genre. "This venerable annual’s twenty-fifth edition represents a milestone for editor Dozois. He has kept faith with the series for a quarter-century without ever shortchanging, or even showing any signs of shortchanging, readers on either quality or abundance of selections."--Booklist