The universe

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Across
  1. 3. nearest start to Earth
  2. 5. Red dwarf star that is closest to the Sun
  3. 7. Belt Found between Mars and Jupiter
  4. 8. Satellite closest to the parent planet.
  5. 9. Largest moon of Saturn
Down
  1. 1. Planet of our solar system with the fastest orbiting speed.
  2. 2. The largest planet of our solar system
  3. 4. The brightest start as seen from Earth
  4. 6. Gas found on the Titan, Saturn's moon