Space

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Across
  1. 2. planet that is named after the Roman god of war
  2. 4. hottest planet
  3. 6. largest moon in solar system
  4. 8. brightest comet
  5. 10. name given to the invisible material once thought to occupy all space
Down
  1. 1. force that bends light rays travelling though the universe
  2. 2. the term for a natural satellite
  3. 3. largest moon of Saturn
  4. 5. Where is the chromosphere
  5. 6. first man in space
  6. 7. first planet in the solar system
  7. 9. planet that is the densest