Solar System

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Across
  1. 2. hottest planet
  2. 3. The closest star to us is.
  3. 5. Our galaxy is the________.
  4. 6. The biggest planet in our solar system.
Down
  1. 1. The smallest planet in our solar system.
  2. 4. We live on _____.
  3. 5. Neil Armstrong is the first to land on the ____.