Across
- 2. What percent of the Milky Way is visible from Earth?
- 3. the planet that rotates on it's side
- 6. the first planet
- 8. the biggest planet
- 9. things that orbit planets
- 12. a planet past Pluto A DWARF
- 13. National Aeronautics and Space Administration
- 14. What is at the center of the Milky Way galaxy?
- 15. what is a ball of plasma in our solar system
Down
- 1. Approximately how old is the Universe?
- 4. the last planet or 8th
- 5. once a planet but now is a dwarf planet
- 7. where we live
- 9. the planet next to us
- 10. Which planet has the largest rings in our solar system?
- 11. they are gas giants