The Year's Best Science Fiction: Twenty-Second Annual Collection by Stephen Baxter and Robert Reed and James L. Cambias and Terry Bisson and Vernor Vinge and Eleanor Arnason and Mary Rosenblum and Vandana Singh and Peter F. Hamilton and Pat Murphy and Paul Di Filippo and Caitlín R. Kiernan and Albert E. Cowdrey and Paul Melko and William Sanders and Benjamin Rosenbaum and Daniel Abraham and Walter Jon Williams and Colin P. Davies and David Moles and Nancy Kress and Paolo Bacigalupi and Michael Flynn and James Patrick Kelly and Brendan DuBois and Kage Baker and M. John Harrison and Christopher Rowe