The Big Bang, red-shift and the expanding Universe

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Question 6
Easy

Astronomers analyze the spectral lines of light emitted by distant galaxies and compare them to light from a stationary source.

Describe how the light from these distant galaxies shows 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