Space Exploration Pt 2

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Across
  1. 1. We hope to colonize this planet someday
  2. 3. the ship used to leave Earth
  3. 5. people sent to space
  4. 6. First country to land on the moon
  5. 9. everything that the sun's energy reaches
  6. 11. speed to leave Earth's gravity
  7. 13. The largest planet in our solar system
  8. 15. Second last planet from the sun
  9. 19. the ISS
  10. 22. the farthest planet from the sun
  11. 23. the force pulling objects toward planets
  12. 24. closest planet to the sun
Down
  1. 2. competition for "firsts" in space
  2. 3. First country to send a man into space
  3. 4. what is ignited to thrust rockets upward
  4. 7. an object orbiting Earth
  5. 8. satellites to triangulate a location
  6. 9. rockets that separate to carry less mass
  7. 10. Earth sized planet, extremely hot
  8. 12. Gas Giant planet with noticeable rings
  9. 14. circling a planet without falling
  10. 16. very little/no gravity is felt
  11. 17. Home
  12. 18. what we want to get into space
  13. 20. objects sent to space to observe
  14. 21. the star in our solar system