Across: |
1. | It takes 165 Earth years to circle the sun. | 3. | The study of the stars, planets and other objects in space. | 5. | The smallest planet | 6. | Once considered a planet but now referred to as a dwarf planet. | 8. | The largest planet in the solar system. | 10. | An object in space that is smaller than a planet and larger than a comet or meteor | 11. | Known as Earth's twin. | 13. | The red planet. | 14. | Number of planets that orbit the sun in the solar system. |
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Down: |
1. | In January this half of the Earth is pointed away from the sun. | 2. | The planet known for its rings. | 4. | A darkening of a planet, moon, or star. | 7. | Satun's largest moon. | 9. | A blue green planet. | 12. | The fifth largest planet. |
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