Secrets from Universe

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Across
  1. 4. Galaxy in which we are located
  2. 5. Largest planet in solar system
  3. 7. Shape of our orbit
  4. 8. Reason why we have high tide and low tides
Down
  1. 1. Even light cannot escape from it
  2. 2. Minutes taken for light to reach from sun to earth
  3. 3. Force that keeps planets from drifting away from sun
  4. 4. Smallest planet in solar system
  5. 6. Dwarf planet