5 • The Territoriality of Space Exploration • [Editorial (Analog)] • essay by John G. Cramer12 • Petals of Rose • novella by Marc Stiegler48 • Rubber Sheet Physics • [Science Fact (Analog)] • essay by Tim Poston and Ian Stewart66 • Tremors • shortstory by L. A. Taylor73 • AnaLog: A Calendar of Upcoming Events (Analog, November 1981) • [Upcoming Events] • essay by Anthony R. Lewis [as by Anthony Lewis ]74 • A Second Chance • shortstory by Al Charmatz86 • It's Coming from Outer Space • [The Alternate View] • essay by G. Harry Stine90 • Job Inaction • novelette by Timothy Zahn111 • The Reference Library (Analog, November 1981) • [The Reference Library] • essay by Spider Robinson119 • In Times to Come (Analog, November 1981) • [In Times to Come (Analog)] • essay by uncredited120 • The Guilt Game • shortstory by Eric Vinicoff135 • Biolog: David Bischoff • [Biolog] • (1981) • essay by Jay Kay Klein136 • Dragonstar (Part 3 of 4) • [Dragonstar • 1] • serial by David Bischoff and Thomas F. Monteleone171 • Brass Tacks (Analog, November 1981) • [Brass Tacks] • essay by uncredited