OUTEER SPACE

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Across
  1. 1. the sun is actually a ___ just much closer than all the others
  2. 3. the hottest planet
  3. 7. the closest planet to the sun
  4. 8. the only country to send a human to the moon is the ___ ___
  5. 10. this planet is known for its rings
  6. 13. its the farthest (#9) planet from the sun
  7. 15. any object that enters Earth's atmosphere burns up due to ___
  8. 16. the rocket/probe that flew towards the sun to explore Mercury & Venus
Down
  1. 1. the largest object in our solar system
  2. 2. the largest planet
  3. 3. the rocket/probe that flew towards the outer planets to explore them
  4. 4. this planet spins on its side
  5. 5. Mars is colored ___ due to the rusty iron on its surface
  6. 6. the force that keeps all the planets in orbit around the sun
  7. 9. we are considering sending humans to this planet
  8. 11. this planet is named after the god of the sea
  9. 12. the dinosaurs became extinct when an ___ hit the Earth
  10. 14. In 1969 humans landed on which object in outer space?