colonising mars crossword

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Across
  1. 2. a celestial body orbiting a star
  2. 5. relating to the sun
  3. 7. a profession where you explore space
  4. 9. a group of people settling into somewhere new
  5. 11. something only living organisms have
Down
  1. 1. a rock that orbits objects
  2. 3. a life-sized toy car to explore mars
  3. 4. something made up of many solar systems
  4. 6. 4th planet from the sun
  5. 8. what air is made from
  6. 10. an object revolving around another