Save the Planet

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Across
  1. 6. the biggest planet
  2. 9. someone who travels space
  3. 10. a place in space that light can not escape from
  4. 11. The zone around the planet with no air
  5. 12. way the galaxy that includes our solar system
  6. 13. a system of stars
  7. 14. the path and movement of a planet
Down
  1. 1. rocks soaring in space
  2. 2. no longer a planet
  3. 3. everything in space makes up of
  4. 4. dust thrown by dying star
  5. 5. a body of mass that travels around the sun
  6. 7. a group of stars that form a pattern
  7. 8. burning ball of gas
  8. 9. an extraterrestrial creature