Across
- 7. a large, round object that revolves around a star and has cleared the region around its orbit
- 8. an explosive eruption of waves and particles into space
- 9. any of the four planets in our solar system beyond Mars
- 11. the path a object takes as it revolves around a star, planet, or moon
- 12. any of the four closest planets to the sun
- 14. one full orbit around the sun
Down
- 1. a large, round object that revolves around the sun but has not cleared the region around its orbit
- 2. a spacecraft that gathers data without a crew
- 3. an imaginary line around which an object spins
- 4. one whole spin of an object
- 5. a frozen mass of different types of ice and dust orbiting the sun
- 6. a group of stars that forms a pattern
- 10. a rocky mass up to several hundred kilometers wide that revolves around the sun
- 13. a natural object that revolves around a planet
