Across
- 2. a celestial object consisting of a nucleus of ice and dust
- 7. a brief eruption of intense high high energy radiation from the suns surface
- 9. the star at the center of our solar system
- 10. astronomer who discovered pluto
Down
- 1. sixth planet from the sun
- 3. the galaxy that contains our solar system
- 4. what rocky planets are called
- 5. Giants what gas planets are called
- 6. largest dwarf planet in the kuiper belt
- 8. the natural satellite of the earth