Solar System

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Across
  1. 2. Cloud where long-period comets come from
  2. 5. Happens during the night
  3. 6. Dirty Snowball that orbits the Sun
  4. 9. A gaint planet composed mainly of hydrogen and helium
  5. 10. Known to harbor Life
Down
  1. 1. A planet named "God of the Sea"
  2. 3. A planet composed mainly of silicate rocks and metal
  3. 4. Solid rock like object that revolves around the Sun
  4. 7. The galaxy we live in
  5. 8. A small rocky body that orbits the Sun