Astronomy

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Across
  1. 3. Number of planets in our solar system
  2. 5. The smallest planet
  3. 7. Layer of air that surrounds the Earth
  4. 8. Brightest object in the night
  5. 9. "the Twins"
Down
  1. 1. The great red spot
  2. 2. Our galaxy
  3. 4. Someone who studies Astrology
  4. 5. Has 95% of carbon dioxide
  5. 6. A diagram used by astrologers to represent the positions of the planets and stars