| Answer | Crossword Clue |
|---|---|
| EDGE | Outer limit |
| RIM | Outer limit |
| VERGE | Outer limit |
| SLAV | Outer limit |
| END | Outer limit |
| magnetopauses | The outer limit of a magnetosphere |
| magnetopause | The outer limit of a magnetosphere |
| ionopause | the region of the earth's atmosphere at the outer limit of the ionosphere |
| ionopauses | IONOPAUSE, the region of the earth's atmosphere at the outer limit of the ionosphere |
