Analog Science Fiction - Science Fact April 1990 (Vol.110, No.5)
Cover by Kelly Freas (for "The Common Goal of Nature.")

Novelettes: "The Common Goal of Nature" by Michael F. Flynn
"Starstep" by F. Alexander Brejcha ("Jim Martin" series)
"The Icarus Epidemic" by Jayge Carr.
Science Fact: "Scientific Diversions" by Margaret L. Silbar.

Stories: "Green Cheese" by Grey Rollins ("Lunar/Edgar Rice" series)
"Ramusack Times Six" by Paula Robinson
"Childhood's Confession" by Lou Grinzo
"The Tale of the Brahmin's Wife" by Geoffrey A. Landis.

Stanley Schmidt's editorial is "Matters of Attitude."