Formation Of Our Solar System

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Across
  1. 2. Objects whose formation involves a large collision involving Earth.
  2. 4. A planet that is formed when a rocky core accumulates gas rapidly.
  3. 8. A dwarf planet that is larger than pluto
  4. 9. A dense super hot ball surrounded by debris.
  5. 12. A disc of debris surrounding the solar system
  6. 13. A planet that is knocked onto its side.
  7. 17. The energy liberated at the beginnings of stars formation.
  8. 18. The unit of distance based on the speed of light.
  9. 19. A planet surrounded by large rings
  10. 21. The largest planet in the solar system.
  11. 22. The average distance from the Earth to the Sun:
Down
  1. 1. The hottest planet in the solar system.
  2. 3. A cloud of dust that can be described as a star nursery.
  3. 5. Another potentially habitable solar system.
  4. 6. A dwarf planet that was once considered a planet.
  5. 7. Theriosied to once being the seventh planet of the solar system.
  6. 8. The only planet in our solar system populated with active robots.
  7. 10. The name of a rocky planet.
  8. 11. The only planet in the solar system with life.
  9. 14. A Disc of debris located between mars and Jupiter.
  10. 15. The zone away from a star where water could exists as a liquid.
  11. 16. The number of billion meters in 1 Au
  12. 20. The planets which is only an iron core.