Adrian 1

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