BIG BANG THEROY

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Across
  1. 2. The first era
  2. 5. we are still in this era now
  3. 6. remnants of the big bang
  4. 8. one of the ways the world will end
  5. 10. Another way the universe will end
  6. 11. can be hot or cold
  7. 12. opposite of light matter
  8. 13. displacement of the spectrum
Down
  1. 1. the change in frequency Bigbangtheory theory on how the universe formed
  2. 3. Speed of light
  3. 4. we launched this in 1990
  4. 7. make up an object
  5. 9. substance of the mass
  6. 11. seconds, minutes, hours