Across
- 3. Leftover debris from planet formation
- 6. Small rocky bodies found mostly between Mars and Jupiter
- 8. Flattened rotating disk of gas and dust
- 9. Early stage of a forming star
- 11. Cloud of gas and dust where stars and planets form
- 12. Force pulling matter together during formation
Down
- 1. Frozen objects from the outer Solar System with tails
- 2. Large gaseous planets like Jupiter
- 4. Process by which particles stick together to form planets
- 5. Disk of material surrounding a young star
- 7. Region beyond Neptune filled with icy bodies
- 10. The star at the center of our Solar System