tracers star puzzles

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Across
  1. 2. what plates do around the sun
  2. 3. our solar system is in this
  3. 5. donut shaped belt on the outside of Neptune's orbit
  4. 7. brightest star in the night sky
  5. 9. time that light travels
  6. 12. so far only planet that can support life
  7. 13. when the gravitational pull of an objects cece's to exist there is a vacuum made and out of that vacuum comes this
  8. 14. a space station that we have astronauts stay on to conduct their research on space
  9. 19. A telescope that can see things the naked eye cant
  10. 20. furthest man made object in space
  11. 21. collection of stars and planets
  12. 22. we can see them in the night sky
  13. 23. a machine we sent into space to gather information or to help out phones to work
Down
  1. 1. what keeps us from floating away from earth
  2. 4. what you experience when you are moving very fast and then suddenly not moving
  3. 6. big circles in space mostly solid
  4. 8. one part of the compound of water
  5. 10. every object has this it never changes and sometimes get mistaken for weight
  6. 11. how long it takes the iss to orbit the earth
  7. 15. a large gathering of gas and dust in space
  8. 16. a princess of Ethiopia that the hero precious saved
  9. 17. one of the stars that makes up the consolation Ursa minor
  10. 18. pictures that can be made out of stars