Across
- 4. the smallest terrestrial planet; the smallest plant in the Solar System
- 5. the farthest planet from the sun; the smallest of the gas giants
- 7. the most widely searched planet for life
- 8. the biggest planet of our solar system; one of the five visible planets
Down
- 1. the second-largest planet in the Solar System; has a total of 82 confirmed moons
- 2. the biggest of the ice giants; the only planet known to rotate on its side
- 3. the second planet from the sun; the 6th largest planet in the Solar System
- 6. is around 4.5 billion years old