Space Crossword

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Across
  1. 4. Used to see space from our own backyard
  2. 6. First satellite sent into space
  3. 8. Force holding us to the earth
  4. 9. Known as the red planet
  5. 10. Can be seen at night that sparkle
Down
  1. 1. Hottest planet in our solar system
  2. 2. Closest planet to the sun
  3. 3. Can humans breathe normally in space like they do on earth?
  4. 5. Saturn's largest moon
  5. 7. Famous for rings that surround it