Space Cross Words

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Across
  1. 3. big space rock
  2. 5. Big Balls of Gas
  3. 6. Old Planet
  4. 7. very long distance
  5. 8. planets _____ around the sun
Down
  1. 1. liquid, solid, gas
  2. 2. Only known planet with living organisms
  3. 4. Inside the Milky Way
  4. 6. satellite thingy