Across
- 2. An object of rock and ice that orbits the sun
- 4. 4th planet from the Sun
- 5. The distance light travels in a year
- 7. A star and the objects that orbit the star
- 8. Rocks that orbit the sun
Down
- 1. A group of stars that form a pattern
- 3. A group of billions of stars, gas and dust
- 6. An object that orbits a planet