Mars Colonization

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Across
  1. 3. The year we landed on Mars
  2. 6. Scientists who study space geology
  3. 8. Of a different place; foreign
  4. 9. Entrepreneur and owner of SpaceX
  5. 11. The red planet
  6. 12. An aerospace vehicle built to leave the atmosphere
  7. 14. From far away
Down
  1. 1. A force that pulls an object toward it
  2. 2. The year we'll get to Mars
  3. 4. A Planetary Geologist who studies Mars
  4. 5. could be damaged or hurt by space exploration
  5. 6. A large celestial body that orbits a star
  6. 7. A science relating to air and space
  7. 10. The first country to land on Mars
  8. 13. The strength of Mars' gravity compared to Earth