Braden's Crossword Puzzle

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Across
  1. 3. Made of gas
  2. 5. Dirty snowball
  3. 6. Has rings
  4. 7. Meteor that hits the surface
  5. 8. First scientist to believe in heliocentric
Down
  1. 1. Coldest planet
  2. 2. Grain of sand to 1000 km diameter
  3. 3. Has a big red spot
  4. 4. Planets Celestial
  5. 7. Natural satellites