Across
- 2. The neighbor of Venus
- 5. First planet located using math
- 7. Soon to be explored
- 8. Cannot be seen with the naked eye
- 9. The start of the outer planets
- 10. Explored in 1969
Down
- 1. A day on this planet lasts 243 earth days
- 3. Has the most rings in our solar system
- 4. Has liquid drinkable water
- 6. Yet to explode in 7 to 8 billion years