Universe Crossword Puzzle

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Across
  1. 2. A region of space with a gravitational field.
  2. 4. _____________ revolves around the Sun.
  3. 5. Lowest region in the atmosphere.
  4. 9. A very cold and windy planet.
  5. 10. One explanation of how the universe began.
  6. 12. Second largest planet in the solar system.
  7. 15. ____________ travel to space to discover and learn new things about the universe.
  8. 16. Known as the red hyper giant. One of the biggest stars in the universe.
  9. 18. The night sky is filled with ___________ that are far, far away.
  10. 20. ZOOM in and you can see the stars up close!
Down
  1. 1. The galaxy that contains our solar system is the ___________.
  2. 3. Divided into four primary layers.
  3. 6. Gives of light for all to see.
  4. 7. This transportation can take astronauts to space!
  5. 8. The distance that light travels in one year.
  6. 11. Some day people will try to land on _______.
  7. 13. A landscape that have features of the moon.
  8. 14. The troposphere is below this layer of Earth atmosphere.
  9. 17. Helps collect data and information about the universe.
  10. 19. Carbon dioxide is an example of this.