Across
- 2. nova is caused by the explosion of a star
- 4. what rocky plants are called
- 8. is a big object that orbits a plant
- 10. everything ever is in it
Down
- 1. have a tail that points away from the sun
- 3. has the strongest gravity in the universe
- 5. is were all asteroids are from
- 6. is the star at the center of are solar system
- 7. what gas plants are called
- 9. the place stars are born