"Shields of Mars" by Gene Wolfe, copyright 2002 by Gene Wolfe. First appeared in Mars Probes.
Reprinted by permission ot the author and the author's agent, the Virginia Kidd Agency, Inc.
"Patent Infringement" by Nancy Kress, copyright 2002 by Nancy Kress. First published in Asimov's.
"Lost Sorceress of the Silent Citadel" by Michael Moorcock, copyright 2002 by Michael and Linda Moorcock. First published in Mars Probes.