注意！这本是短篇集Impact Parameter

目录

* "A Walk in the Sun" (1991)
* "Impact Parameter" (1992)
* "Elemental" (1984)
* "Ecopoiesis" (1997)
* "Across the Darkness" (1995)
* "Ouroboros" (1997)
* "Into the Blue Abyss" (1999)
* "Snow" (1998)
* "Rorvik's War" (1995)
* "Approaching Perimelasma" (1998; available elsewhere in infinity plus)
* "What We Really Do Here at NASA" (1994)
* "Dark Lady" (1995)
* "Outsider's Chance" (1998)
* "Beneath the Stars of Winter" (1993)
* "The Singular Habits of Wasps" (1994)
* "Winter Fire" (1997)