Across
- 1. of the solar system — SUN
- 6. space rock — COMET
- 7. Planet — MARS
- 8. around a planet — ORBIT
- 9. expanse of space — UNIVERSE
- 10. space cloud — NEBULA
Down
- 2. satellite — MOON
- 3. planet — SATURN
- 4. pulling downward — GRAVITY
- 5. celestial body — STAR