| Answer | Crossword Clue |
|---|---|
| IONOSPHERE | Regions of space. |
| ETHER | Upper regions of space |
| ETHER | Upper regions of space. |
| ETHER | Outer regions of space |
| AETHER | Upper regions of space: Var. |
| ETHER | The upper regions of space. |
| ETER | Upper regions of space: Spanish. |
| ETHER | Upper regions of space, figuratively |
| ETHER | Upper regions of space, poetically |
| ETHERIC | Of the upper regions of space |
| ETHERIC | Of the upper regions of space. |
