John 4

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Across
  1. 4. stream of charged particles
  2. 5. loop of gas
  3. 6. Hottest layer of atmosphere
  4. 9. start of expansion
  5. 10. cooler areas on surface
  6. 12. all new stars
  7. 13. Collapsed neutron star, no light escapes
  8. 14. Bright center of a distant galaxy
  9. 15. all old stars
  10. 17. tells us galaxies are moving away
Down
  1. 1. squeezing atoms together
  2. 2. apparent shift
  3. 3. Collapsed core of a high mass star
  4. 7. Cloud of gas and dust
  5. 8. 6 trillion miles
  6. 10. Young stars in its arms old in the center
  7. 11. Warm rises, cool sinks
  8. 13. the raisins spread apart as the bread rises
  9. 16. Fusion of H2 and HE