Our solar system, stars, exploration and galaxies

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Across
  1. 2. what kind of galaxy is the milky way
  2. 6. what is the coldest planet in the solar system (not on average but all time)
  3. 8. piece of rock that orbits planets, often made from same items that made planet
  4. 10. largest kind of star
  5. 11. our home planet
  6. 12. mars has how many moons
  7. 13. this planet is often called "The red planet"
  8. 15. what is the last planet from the sun?
  9. 16. which planet is famous for its rings
Down
  1. 1. what space body sucks in all matter
  2. 3. first person to walk the moon
  3. 4. dwarf planet orginally part of our solar system
  4. 5. what is the largest planet in the solar system?
  5. 7. what is the hottest planet in the solar system?
  6. 9. a large body of burning gas that planets revolve around
  7. 14. the greek name of the god this planet is named after is Hermes
  8. 16. our star