SPACE

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Across
  1. 4. The place where Earth lives
  2. 6. The biggest planet in our solar system
  3. 7. The galaxy we live in
Down
  1. 1. Second to last planet in the solar system
  2. 2. Closest planet to the sun
  3. 3. Made up of stars, gas, dust, and dark matter
  4. 5. An inner planet that we live on