| Original Language | English |
| First published | 1949-04 |
| Notes | "The Ultimate Planet" is a novelette by Noel Loomis, first published in Thrilling Wonder Stories, April 1949. |
Editions 1
Add Edition| Title | Publisher | Format | Language | Location | Dates | Impression | |
|---|---|---|---|---|---|---|---|
 | Thrilling Wonder Stories, April 1949 | Standard Magazines, Inc. | Pulp Magazine | English | New York, NY | 1949 |