Across
- 1. This orbits the Earth
- 3. Transport in space
- 4. Our planets are in the...
- 5. The red planet
- 6. When countries send spacecraft to explore space
- 8. The biggest planet in our Solar System
Down
- 1. The planet closest to the sun
- 2. Our home planet
- 4. The Milkyway has billions of...
- 7. To move around another planet or sun