| Planetary pair | 14 |
| Planetary outcast | 17 |
| Planetary orbiters | 18 |
| Planetary opposites | 19 |
| Planetary models | 16 |
| Planetary model | 15 |
| Planetary impact consequences | 29 |
| Planetary habitation | 20 |
| Planetary gases: Abbr. | 22 |
| Planetary extremes | 18 |
| Planetary eponyms | 17 |
| Planetary center | 16 |
| Planetary body | 14 |
| Planetarium view | 16 |
| Planetarium site | 16 |
| Planetarium sights | 18 |
| Planetarium sight | 17 |
| Planetarium roof | 16 |
| Planetarium objects | 19 |
| Planetarium light | 17 |
| Planetarium in Philadelphia | 27 |
| Planetarium in Chicago | 22 |
| Planetarium features | 20 |
| Planetarium feature | 19 |
| Planetarium display | 19 |
| Planetarium attractions | 23 |
| Planetarium apparatus | 21 |
| Planetarium | 11 |
| Planet, to poets | 16 |
| Planet, to a poet | 17 |
| Planet, poetically | 18 |
| Planet, hound or god | 20 |
| Planet, for example | 19 |
| Planet, e.g. | 12 |
| Planet's shadow | 19 |
| Planet's path | 17 |
| Planet's orbit | 18 |
| Planet's center | 19 |
| Planet worker | 13 |
| Planet with the most moons | 26 |
| Planet with the most circular orbit | 35 |
| Planet with rings | 17 |
| Planet with one satellite | 25 |
| Planet with one moon | 20 |
| Planet with a nearly circular orbit | 35 |
| Planet with a chuckle-inducing name | 35 |
| Planet with 27 moons | 20 |
| Planet whose name is a Disney character | 39 |
| Planet whose moons are named after water deities | 48 |
| Planet whose inhabitants age backward | 37 |
| Planet where Orson was often heard | 34 |
| Planet visited by Voyagers | 26 |
| Planet visited by Spaceman Spiff in "Calvin and Hobbes" | 65 |
| Planet threateners | 18 |
| Planet third nearest to the sun | 31 |
| Planet that Triton orbits | 25 |
| Planet that always gets a few laughs | 36 |
| Planet system in several "Star Trek" episodes | 55 |
| Planet suffix | 13 |
| Planet size calculation | 23 |
| Planet sixth nearest to the sun | 31 |
| Planet seventh nearest to the sun | 33 |
| Planet seen in the pre-sunrise sky | 34 |
| Planet second to Jupiter in size | 32 |
| Planet second nearest to the sun | 32 |
| Planet rulers, in a film | 24 |
| Planet ruled by Ming the Merciless in "Flash Gordon" | 62 |
| Planet rescued by Flash Gordon | 30 |
| Planet reporter | 15 |
| Planet paths | 12 |
| Planet path | 11 |
| Planet past Venus | 17 |
| Planet past Saturn | 18 |
| Planet or war god | 17 |
| Planet or sun | 13 |
| Planet or sphere | 16 |
| Planet or Roman god | 19 |
| Planet or peeper, poetically | 28 |
| Planet on which "shazbot" is a profanity | 50 |
| Planet on a 1980s sitcom | 24 |
| Planet on a 1980's sitcom | 29 |
| Planet of the ____ | 18 |
| Planet of the apes | 18 |
| Planet no more | 14 |
| Planet nearest to you | 21 |
| Planet nearest to the sun | 25 |
| Planet nearest Mars, usually | 28 |
| Planet name? | 12 |
| Planet Mork hailed from | 23 |
| Planet Mork came from | 21 |
| Planet Mindy visited | 20 |
| Planet invaded in "The War of the Worlds" | 51 |
| Planet inhabitants? | 19 |
| Planet inhabitants of film | 26 |
| Planet inhabitants | 18 |
| Planet in an old sitcom | 23 |
| Planet in a TV sitcom | 21 |
| Planet in a 1938 radio "invasion" | 43 |
| Planet Hollywood, for one | 25 |
| Planet from 1930 to 2006 | 24 |