"Nancy Kress, winner of multiple awards for her science fiction and fantasy, ranges through space and time in this stunning collection. Anne Boleyn is snatched from her time stream--with unexpected consequences for two worlds. A far-future spaceship brings religion to a planet that already harbors shocking natives. People genetically engineered to never need to sleep clash with those who do. A scientific expedition to the center of the galaxy discovers more than anyone bargained for. A woman finds that ''people like us'' does not mean what she thinks it does. Praised for both her hard SF and her complex characters, Nancy Kress brings a unique viewpoint to twenty-one stories, the best of a long and varied career that has won her five Nebulas, two Hugos, a Sturgeon, and the John W. Campbell Memorial Award"-- Provided by publisher.