Across
- 2. path taken by planets to move around the Sun
- 3. the second smallest planet
- 4. Latin word for Universe
- 5. the hottest planet
- 7. a huge collection of gas, dust stars and their solar systems
- 9. invisible force that draws objects towards the centre
Down
- 1. the planet known for its cold strong winds
- 3. the fastest planet
- 6. a dwarf planet
- 8. the largest moon of Saturn