Across
- 2. it takes Earth 365 days to ___ the Sun
- 4. the force that pulls you towards the center of a planet or star
- 7. planet with the brightest rings
- 8. instrument used for seeing stars and planets clearly
Down
- 1. number of planets in our solar system
- 3. the red planet
- 5. warmest planet; cloudy planet
- 6. dwarf planet with two moons