Analog Science Fiction - Science Fact March 1990 (Vol.110, No.4)
Cover by Robert Murray: "Nuclear Rocketry Using..."

Novella: "Backlash" by W. R. Thompson Novelettes: "Passages" by Joe Haldeman
"Expression of the Past" by Deborah D. Ross.
Science Fact: "Nuclear Rocketry Using Indigenous Propellants: the Key to the Solar System" by Robert Zubrin.

Stories: "The Solomon Solution" by Paula May
"Side Effect" by Roger MacBride Allen.

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

Stanley Schmidt's editorial is "Engineering Problem."