Gavens solar system cross word

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Across
  1. 3. galexy so far away it looks like a star
  2. 4. cooler areas on surface
  3. 6. clapsed newtron star where light cant escape
  4. 8. galaxy that looks like a spiral
  5. 10. squeezing atoms together
  6. 15. streem of charged particles
  7. 16. apparent shift
  8. 17. fusion of h2 and he
  9. 18. cloud of gas and dust
Down
  1. 1. the reasins dpread apart as bread rises
  2. 2. waves such as sound compress or streatch when moving towards or away from us
  3. 5. galaxy that looks like a oval
  4. 7. hottest layer of atmosphere
  5. 9. galaxy that exist and dosent follow a pattern
  6. 11. loop of gas
  7. 12. callapsed core of a high mass star
  8. 13. warm rises cool sinks
  9. 14. START OF EXPANSION