astronomy

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Across
  1. 3. pluto
  2. 7. solar originated from a rotating cloud
  3. 8. 2.44 planetary radii
  4. 10. water molecules broken apart by the suns ultraviolet photons
  5. 13. kepler 37
  6. 15. the bending of light from a distant star
  7. 16. occurs when gas cools and its molecules stick together to form liquid or solid particles
  8. 17. bright dots
  9. 18. classification of big planets like saturn and jupiter
  10. 19. a force that acts repeatedly on a body
Down
  1. 1. distant worlds
  2. 2. rotating disk where planets form
  3. 4. small metallic bodies that cover the solar system
  4. 5. steep cliffs on mercury
  5. 6. ring of asteroids
  6. 9. condensing of tiny particles that from the nebula
  7. 11. tiny dust particles found in a intersteller clouds
  8. 12. small planet like bodies
  9. 14. tiny particles that burn in the atmosphere