Space puzzle

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Across
  1. 3. Latest Nasa Rover
  2. 6. 13 Name of the first mission after landing on the moon
  3. 8. Tourism Space x is starting it
  4. 9. Closest planet to the sun
Down
  1. 1. Dwarf planet
  2. 2. Lot's of country's work together on it
  3. 4. main engine of space shuttle
  4. 5. Colonized planet
  5. 7. First To Space
  6. 8. twinkle in the sky