Across
- 2. This has many many many galaxies in it
- 5. It orbits the sun and it's a solid
- 7. It is made up of star systems, dust, and moons
- 9. They are made up of metal and rocks they have few moons and no rings
- 10. It orbits the sun and it's a form of matter
Down
- 1. This planet is like a sister to Earth
- 3. They are made up of gas and ice they have rings and many moons
- 4. We live in this star system
- 6. This planet can support life
- 8. We may inhabit this planet in man many years