Earth and Space Crossword

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Across
  1. 4. The final stage of a large star's life.
  2. 7. Another name for northern lights.
  3. 9. A cluster of planets that orbit one or numerous stars
  4. 12. Occurs about 2-5 times a year.
  5. 13. Completely burns up when hitting Earth's atmosphere
  6. 14. A huge cluster of dust and gas holding billions of stars and solar systems.
Down
  1. 1. When a white-dwarf has no longer shines light.
  2. 2. Distance traveled by light in ONE year.
  3. 3. When a small star blows its outer layers.
  4. 5. A theory that explains how the universe began.
  5. 6. Largest planet in our solar system.
  6. 8. A planet in dark-blue color and a ice particle ring.
  7. 10. Stars become this after running out of nuclear fuel.
  8. 11. Consists of ice and dust and originates from Kuiper Belt and Oort Cloud.