Sience

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Across
  1. 2. Squeezing atoms together
  2. 5. no shape
  3. 8. collapsed Core Of A High Mass Star
  4. 9. Warm Rises Cool Sinks
  5. 11. apparent Shift
  6. 13. Cloud of Gas And Dust
  7. 15. Hottest Layer Of Atmosphere
  8. 16. loop of gas
  9. 17. The Rasins Spread Apart as the bread rises
  10. 18. Old Stars
Down
  1. 1. Tells Us Galaxies are moving away
  2. 3. stream of charged particles
  3. 4. Fusion Of H And He
  4. 6. hot stars in the arms old stars in the center
  5. 7. Bright Center Of A Distant Galaxy
  6. 10. collapsed neutron star no light escapes
  7. 12. cooler areas on surface
  8. 14. 6 trillion miles
  9. 17. Bang Start Of Expansion