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