Across
- 3. the study of space
- 4. ________ system
- 6. the study of meteors
- 9. Pluto
- 10. a device that is used to see planets from earth
Down
- 1. the sun is a ______
- 2. a group of stars
- 5. in space there are 8 of them
- 7. the inventor of the telescope
- 8. what keeps us on earth