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Across
  1. 2. – Giant gas planet
  2. 3. – A system of the sun and all planets in it
  3. 4. – Red planet (alternate name from mythology)
  4. 6. – Rings belong to this planet
  5. 7. – Earth's natural satellite
Down
  1. 1. – Space rock that enters Earth’s atmosphere
  2. 3. – Bright object that twinkles
  3. 4. – A small rocky body in space
  4. 5. – 3rd planet from the sun