| 2 clues |
|---|
| Source of the Fantastic Four's superpowers |
| Extraterrestrial factor in creating much of Earth's carbon-14 |
| Cosmic |
| Cosmical |
| Cosmicarray |
| Cosmicdust |
| Cosmicjoke |
| Cosmicraid |
| Cosmicraise |
| Cosmicray |
| Cosmicrayon |
| Cosmicrays |
| Cosmicrazor |
| Cosmicre |
| Cosmicsurgery |
| Cosmicust |
| Cosmism |
| Cosmist |
| Macrocosmic |
| Neocosmic |