Gabriella blom 8th hour

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Across
  1. 1. cooler areas on surface
  2. 3. start of expansion
  3. 4. oval shaped
  4. 6. trillion miles
  5. 7. bright center of distant galaxy
  6. 8. collapsed neutron star no light escapes
  7. 9. collapsed core of a high mass star
  8. 10. warm rises, cool sinks
  9. 11. squeezing atoms together
  10. 13. loop of gas
  11. 14. hottest layer of atmosphere
  12. 16. cloud of gas and dust
  13. 18. stars all over
Down
  1. 2. new star in wings old in center
  2. 5. fusion of hydrogen and helium
  3. 8. the raisins spread apart bread rises
  4. 12. tells us galaxies are moving away
  5. 15. apparent shift
  6. 17. stream of charged particles