Great Balloon Drop (From Issue 4, August 1982)
Single Event Upsets (From Issue 8, October 1983)
Semiconductors (From Issue 9, December 1983)
Trajectories: Planning a Course for Galileo (From Issue 19, December 1987)
Launch to Landing (From Issue 21, November 1989)
Probe Checkout at Earth 2 (From Issue 30, September 1992)