Electromagnetic spectrum and the universe

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Across
  1. 4. We use this sort of wave in communications such as satellite TV
  2. 6. Red-shift provides evidence to show the universe is...?
  3. 8. Electromagnetic waves transfer this
  4. 10. This man discovered evidence to show the further a galaxy the greater the red shift
  5. 11. What is the acronym to remember the order of the EM spectrum?
  6. 12. the change in the observes wavelength of waves due to motions at the source of the wave is called this
Down
  1. 1. The energy of a wave in the EM spectrum depends on this
  2. 2. Physicists believe there was no ? before the big bang
  3. 3. Wavelength = wavespeed x ?
  4. 5. Total ? reflection occurs in optical fibres such as those used for fibre-optic broadband
  5. 7. All objects emit this type of radiation - the hotter the object is the more radiation that is emitted
  6. 9. Cosmic microwave background radiation was created by high energy ? radiation just after the Big Bang