Across
- 2. The star at the center of our solar system
- 4. The region between Mars and Jupiter filled with millions of rocky objects
- 6. The Sun and all the planets that move around it
- 8. A large, round object in space that moves around a star
Down
- 1. A huge collection of stars, planets, gas, and dust held together by gravity
- 3. Everything that exists: all galaxies, stars, and planets
- 5. Our home planet — the third planet from the Sun
- 7. The path a planet takes as it moves around the Sun