| Answer | Crossword Clue |
|---|---|
| magnetopause | the outer boundary of a magnetosphere |
| magnetopauses | MAGNETOPAUSE, the outer boundary of a magnetosphere |
| magnetopauses | The outer limit of a magnetosphere |
| magnetopause | The outer limit of a magnetosphere |
| PERIMETER | Outer boundary of an area. |
| EDGE | Outer boundary |
| BORDER | Outer boundary |
| PERIMETER | Outer boundary. |
| PERIMETER | Outer boundary |
| LIMIT | Outer boundary |
