stars

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Across
  1. 3. a giant cloud of dust and gas
  2. 4. a big telescope
  3. 5. how much matter you take up
  4. 7. a big space rock that orbits earth
  5. 12. how much light travels in a year
  6. 14. helps you see stars
  7. 16. it is an element
  8. 20. constillation with 16 stars
  9. 21. a galaxy that includes our solar system
  10. 23. orbits a planet or star
  11. 25. it ship in space
  12. 26. a resistance
  13. 27. a triple star system in the southern constellation of Centaurus
  14. 28. first aircraft to pass the helioshere
Down
  1. 1. its 1.5 hours
  2. 2. planets do this around the sun
  3. 6. stars make shapes in space
  4. 8. we live on it
  5. 9. a spacecraft orbiting earth
  6. 10. earth if this
  7. 11. they study space
  8. 13. north star
  9. 15. a galaxy past Neptune
  10. 17. a force that keeps us on the ground
  11. 18. it is really bright and makes constellations
  12. 19. a huge collection of stars
  13. 22. light can't escape from it
  14. 24. a constellation with a big cup