Across
- 4. the path of a object that revolves around another object in space
- 7. region of solar system of the solar sydtem between the orbit of Mars and Jupiter
- 9. system of millions or billions of starts
- 10. chunk of rock and dust in space
- 11. streak of light in the sky
Down
- 1. Name given to the first four outer planets
- 2. name given to the first four inner planets
- 3. Too small to be considered planets
- 5. ball of ice or dust
- 6. meteoroid that has hit earths surface
- 8. The study of the moon,stars,and other objects in space