Across
- 2. describes-formation-of-solar-system
- 5. shooting-stars
- 9. clumped-up-boulder-sized-object-resulted-from-many-collisions
- 10. Jupiter-like-planets
Down
- 1. Earth-like-planets
- 3. slow-rotating-cloud-of-cold
- 4. result-from-collisions-with-asteroids-and-comets
- 6. speed-required-to-escape-planet's-gravity
- 7. small-planetesimals
- 8. left-over-material-from-solar-system