Space is explored by sending small spaceships long distances, with only 2 uploaded human minds as crew. When a promising planet is discovered, 2 human bodies are produced to test the environment thoroughly. The 4 persons study the planet together.
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| May 1974 |
|
Final Stage: The Ultimate Science Fiction Anthology | Charterhouse | Anthology | 20 |
| May 1975 |
|
Final Stage | Penguin Books | Anthology | 29 |
| November 1981 |
|
Explorations | Tor / Pinnacle | Collection | 148 |
| December 1981 |
|
The Dark Between the Stars | Berkley Books | Collection | 114 |
| February 1982 |
|
The Dark Between the Stars | Berkley Books / SFBC | Collection | 134 |
| November 1991 |
|
Explorations | Tor | Collection | 148 |
| February 1996 |
|
All One Universe | Tor | Collection | 281 |
| April 1996 |
|
All One Universe | Tor / SFBC | Collection | 281 |
| May 1997 |
|
All One Universe | Tor | Collection | 249 |