Space Unit

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Across
  1. 2. This planet was thought of as a star
  2. 4. The violent death of a star
  3. 6. Center of the sun
  4. 7. The Milky Way ______
  5. 11. How we measure distance in space
  6. 13. Stars are born from ______
  7. 14. Hottest planet in our solar system
  8. 15. Over 1000 rings
  9. 16. The surface of the sun
  10. 17. A big Fireball in the sky
  11. 19. The largest planet in our solar system
  12. 20. Our only natural satellite
Down
  1. 1. If you look into the sky at night you might see these
  2. 3. The closest planet to the sun
  3. 5. What holds everything together
  4. 8. Dry red and almost habitable
  5. 9. "It's not a planet"
  6. 10. After the violent death of a star
  7. 12. The only currently habitable planet in our solar system
  8. 18. Furthest planet from our sun