| Answer | Crossword Clue |
|---|---|
| ORBITAL | Of planetary paths |
| ARCS | Planetary paths |
| ORBITS | Planetary paths. |
| ORBITS | Planetary paths |
| ALBEDO | Ratio of planetary reflectiveness |
| HOROSCOPE | One kind of planetary chart. |
| NYE | Bill of the Planetary Society |
| KEPLER | Laws of planetary motion discoverer |
| KEPLER | Discoverer of planetary laws (1571-1630). |
| ORBITAL | Kind of velocity in planetary physics |
| SETI | Subj. of concern to The Planetary Society |
| NYE | C.E.O. of the Planetary Society starting in 2010 |
