| Answer | Crossword Clue |
|---|---|
| OORT | ..... cloud: solar system region |
| OORT | .. cloud (solar-system region) |
| OORT | ... cloud (solar-system region) |
| OORT | .. cloud: distant solar system region |
| OORT | .. cloud: remote solar system region |
| OORT | .. cloud: solar system region beyond Pluto |
| OORT | ... cloud (solar system outlier) |
| OORT | ... cloud (distant part of the solar system) |
| heliosphere | The region of space, encompassing the solar system, in which the solar wind has a significant influence |
