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: Thirty-First Annual Collection the very best SF authors explore ideas of a new world in the year's best short stories. This venerable collection brings together award winning authors and masters of the field such as Robert Reed, Alastair Reynolds, Damien Broderick, Elizabeth Bear, Paul McAuley and John Barnes. 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.