Polar Night

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Across
  1. 1. To lean or slant at an angle
  2. 2. The middle of the night
  3. 5. The line where the sky appears to meet the Earth
  4. 7. The layer of gases surrounding a planet
  5. 8. At a greater distance
  6. 9. Extended in duration
Down
  1. 1. The soft light before sunrise or after sunset
  2. 3. A remarkable or observable event
  3. 4. Following one after another
  4. 6. A space rock entering the Earth's atmosphere
  5. 7. An imaginary line around which a body rotates