Earth and Space Crossword

1234567891011
Across
  1. 3. Another name for northern lights.
  2. 6. A cluster of planets that orbit one or numerous stars
  3. 8. Stars become this after running out of nuclear fuel.
  4. 10. Largest planet in our solar system.
  5. 11. A planet in dark-blue color and a ice particle ring.
Down
  1. 1. Distance traveled by light in ONE year.
  2. 2. Consists of ice and dust and originates from Kuiper Belt and Oort Cloud.
  3. 4. Occurs about 2-5 times a year.
  4. 5. A huge cluster of dust and gas holding billions of stars and solar systems.
  5. 7. Completely burns up when hitting Earth's atmosphere
  6. 9. A theory that explains how the universe began.