Across
- 2. Icy object with bright tail
- 6. An imaginary line planets spin around
- 7. Deep ravine carved into a surface
- 9. Space rock that burns up in the atmosphere
- 10. Rocky body orbiting the Sun
Down
- 1. Mountain that erupts molten rock
- 3. When one object blocks another's light
- 4. Different looks of the Moon during its orbit
- 5. Bowl-shaped depressed formed by impacts
- 8. Force that keeps planets in orbit