Comets

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Across
  1. 2. the ______ system
  2. 4. the month that Halley's comet will visit Earth in 2061/
  3. 5. comets are much larger when in this state of matter
  4. 7. the Kuiper belt is found after this planet
  5. 10. type of comets that come from the Kuiper Belt
  6. 11. the female astrologer that discovered the Kuiper Belt
Down
  1. 1. people who study stars and comets
  2. 3. there are eight in our solar system
  3. 6. National Aeronautics and Space Administration
  4. 8. before the Kuiper belt was discovered, it was _______.
  5. 9. type of comets that come from the Oort Cloud