Imagine a technology that can change the structure and function of your own body...that can devour an entire country...that can create an entire new world from teh ashes of the old...This is nanotechnology -- the creation of self-replicating machines with the capability to build or alter almost any structure, including the human form, by manipulating atoms or molecules -- and it has captured the imaginations of science fiction writers and readers everywhere. The possibilities are endless -- and the potential is terrifying. The writers featured in this collection know the science behind nanotechnology better than anyone in the genre -- and they will take you to a future world that is stranger than you can imagine...

Contributors include: Greg Bear, Nancy Kress, Greg Egan, Michael F. Flynn, Ian McDonald, Kathleen Ann Goonan, Stephen Baxter, Paul Di Filippo, David Marusek, Geoffrey A. Landis