Today's most talented current SF authors take us on new TRAJECTORIES! Marianne J. Dyson brings us a suspenseful tale from the surface of Mars. Bud Sparhawk shows us blue-collar workers finding danger while just trying to make a living. John F. Allen explains how a TV production assistant can go from fighting racial prejudice in the 1950s to defending against an alien invasion in the far future. Brad R. Torgersen introduces us to "The Ghost Conductor Of The Interstellar Express." And many more!