| ??? |
| Exotic rock |
| Crater maker |
| Lunar lander? |
| Rock from afar |
| Downfallen rock |
| Depression creator |
| Rock from outer space |
| Visitor from outer space |
| It came from outer space |
| Source of rare metals, maybe |
| The largest in the U.S. was found in Oregon's Willamette Valley in 1902 |