Across
- 2. Instrument used to observe planets
- 6. Newest car-sized Mars rover
- 9. Machine used to explore other worlds
Down
- 1. The group that planets are part of
- 3. Name of a famous Mars rover
- 4. A creature that may live on other planets
- 5. Smaller type Pluto was reclassified as
- 7. Relating to our Sun and its planets
- 8. Future human settlement on another planet