Across
- 2. Planet "just right" for life.
- 4. Planet known for its spectacular rings.
- 7. Sister Ice Giant to Uranus.
- 9. Planet closest to the sun and fastest moving.
- 10. Average sized star that our planets orbit around.
- 11. A planets natural satellite.
- 13. Commonwealth Scientific and Industrial Research Organization. (acronym)
Down
- 1. Planet that is closet to earth, sometimes called the Morning Star.
- 3. First to use a telescope.
- 5. Astronomer that first believed the planets revolved around the sun.
- 6. Largest planet, known as the gas giant.
- 8. Blue/green planet that spins on its side.
- 11. Often called 'the Red Planet' due to its appearance.
- 12. Organization that developed the technology to allow the first men to walk on the moon. (acronym)