Big Bang

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Across
  1. 3. these elements were the first to form and make up 99% of the universe
  2. 5. discovered red shift and showed galaxies appeared to be moving away from the milky way
  3. 6. A theory that suggests that our universe is always expanding
  4. 7. higher wavelength,lower frequency
  5. 10. small particles
  6. 12. first piece of evidence supporting the bb
Down
  1. 1. coined the phrase big bang
  2. 2. discovered CMB
  3. 4. lower wavelength,higher frequency
  4. 8. holds all matter
  5. 9. Left over radiation from the origin of the universe
  6. 11. A complete range of frequencies