Across
- 2. Our galaxy
- 5. A body that orbits Earth
- 6. How much light travels in one year
- 8. Objects that orbit Earth to collect information
- 9. Solid shell of a rocky planet, or dwarf
- 11. Known as a meteor
- 13. Huge collection of stars and planets
- 14. Known as Mars, Jupiter, Saturn, or Earth
Down
- 1. A "hole" that swallows everything
- 3. Red dwarf six light years away
- 4. What the moon does
- 7. An object made of ice, dust, and gases
- 8. The biggest star next to Earth
- 10. A very big star
- 12. An old star
- 15. Very beautiful in the night sky