The Big Bang, red-shift and the expanding Universe

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Question 40
Easy

Astronomers observe the light spectra from distant galaxies to study the history of our Universe.

Describe how the light observed from these distant galaxies provides evidence that the Universe is expanding.

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The Big Bang, red-shift and the expanding Universe Questions

  1. GCSE
  2. /Physics
  3. /The Big Bang, red-shift and the expanding Universe