Across
- 2. someone who travels into space
- 4. To circle around an object
- 5. A tall rod of metal or wood
- 7. Natural waterways
- 9. To conquer
- 10. A round solid figure
Down
- 1. Giant holes in a planets surface
- 3. Gases around a star or a planet
- 6. A natural satellite
- 8. Someone who studies planets and space