Analog Science Fiction - Science Fact March 1989 (Vol.109, No.3)
Illustrations by Nicholas Jainschigg, Martin Cameron, Vincent Di Fate, Todd Hamilton, Janet Aulisio, Arthur George, William R. Warren, Jr. Cover by Nicholas Jainschigg (for "Nothing in the Night-Time.")

Novelettes: "Nothing in the Night-Time" by Harry Turtledove
"On the Wings of a Butterfly" by Michael F. Flynn
"Humanity Test" by Charles Sheffield
"The Slyph" by Rick Shelley.

Science Fact: "Mars: The Soviet March" by Donald F. Robertson.

State of the Art: "Over-Communicated" by Ben Bova & G. Harry Stine.

Stories "Sundancer Falling" by Geoffrey A. Landis
"Extinction Theory" by Jeff Hecht
"The Musketeer Menace" by Laurence M. Janifer ("Knave" series)
"Origins" by Harry Frank.

Stanley Schmidt's editorial is "Open Letter to a Teacher"