Letter (Astounding, August 1943): If You Explored One Star a Week, and a Thousand Similar Explorers Were at Work, How Long Would It Take to Investigate Every Star in This One Galaxy? In Ten Million Years of Such Work, You Could Map One Sector of This Galaxy Perhaps—
| First published | August 1943 |
|---|---|
| Type | Essay |
Publications (1)
| Date | Publication | Publisher | Type | Page |
|---|---|---|---|---|
| August 1943 | Astounding Science-Fiction, August 1943 | Street & Smith Publications, Inc. | MAGAZINE | 160 |