Arie'on 1

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Across
  1. 3. fusion of h2 and he
  2. 4. tell us galaxies are moving away
  3. 6. cooler area on surface
  4. 9. collapesed netron star no light escapes
  5. 11. hottest layer of atmosphere
  6. 12. warm ries, cool sinks
  7. 14. galaxy no shape
  8. 17. has a spiral
Down
  1. 1. bright center of a distance galaxies
  2. 2. the raisins spread apart as the bread rise
  3. 5. atoms togeather
  4. 7. loops of gas
  5. 8. stream of charged particles
  6. 9. bang start of expansion
  7. 10. clould of gas and dust
  8. 13. star-collapsed cored of high mass star
  9. 15. 6 trilion miles
  10. 16. apparent shift