Star cross word Puzzle

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Across
  1. 3. Leo,Libra,Virgo,Sagittarius,etc.
  2. 4. stars orbiting in space
  3. 5. star system located around 4.37 light-years away
  4. 7. it is on a candy bar
  5. 9. located in a ursae minoris
  6. 13. a repeating path in space
  7. 14. Venus,uranus,earth,jupitur,etc.
  8. 15. a region in space where gravity is so intense that NOTHING, can escape
  9. 17. the H in H2O
  10. 18. the bright,shiny things in the sky
  11. 20. thirty minutes times three
  12. 21. sounds like Bubble but has an H in it
  13. 22. where we live
Down
  1. 1. big station in earth
  2. 2. an invisible force in space
  3. 6. measurement of matter
  4. 8. disk shaped circle that goes long ways
  5. 10. a distance of six trillion miles
  6. 11. a NASA space probe
  7. 12. something moving around a bigger object
  8. 16. object in motion stays in motion and a object at rest stays in rest unless and outside force is acted on it
  9. 19. closest major galaxy from the milky way