Across
- 3. there are nine in our solar system
- 4. looks like a rock
- 5. travels to space
- 7. it goes on forever
- 8. man has visited here
Down
- 1. twinkle at night
- 2. we can see space through them
- 6. the milky way is one of them
- 7. makes daylight
- 9. the continuous cycle of the planets