Space

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Across
  1. 2. Planet that is mostly water
  2. 4. Area Between the planets
  3. 7. Our Solar system
  4. 8. Force of attraction between two masses
  5. 9. curved trajectory of the planets on the Milky Way
Down
  1. 1. Closest planet to the sun
  2. 3. Collection of billion of stars
  3. 5. Largest star in our universe
  4. 6. The bigger the mass the stronger the...