Across
- 3. a burning ball of gas
- 4. not even light can reach it
- 7. a body that orbits a planet
- 9. a rock floating in space
- 10. something that orbits a star
Down
- 1. an explosion is space
- 2. separates inner and outer planets
- 5. has a tail
- 6. in the middle of the solar system
- 8. billions of stars