Space

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Across
  1. 3. Person who goes to space.
  2. 5. Shape of planets.
  3. 6. Made of rock or gas.
  4. 10. You can see these fly across the sky.
  5. 12. Term used for planets closer to the sun.
  6. 13. Is completely silent.
  7. 15. Fill in the blank, solar
  8. 19. People make jokes using this planet's name.
  9. 20. Galaxy that has the same name as a cadybar.
Down
  1. 1. Created to light the night sky.
  2. 2. Another planet without moons.
  3. 4. Tool used to view stars and planets.
  4. 7. We live on this planet.
  5. 8. The second largest planet.
  6. 9. America's space organization.
  7. 11. One of the planets without moons.
  8. 14. Used to be counted as a planet.
  9. 16. The hot star planets circle.
  10. 17. Known to be dusty and cold.
  11. 18. The sun is made of hydrogen and ?