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Universe is expanding faster than the speed of light

  1. Nov 13, 2004 #1
    I always thought that the universe is expanding faster than the speed of light.
    Am i wrong, or is that only during the proposed period of "inflation" in the early universe.
  2. jcsd
  3. Nov 13, 2004 #2


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    Your second description is correct, i.e. speed of expansion was much greater than the speed of light during inflation.
  4. Nov 13, 2004 #3


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    While that is correct it is also true that in a large enough universe any homogeneous expansion will mean that a region far enough away will be receeding from us at faster than the speed of light.

    However this does not violate SR because it is space-time itself that is expanding, not the motion of objects within space-time, they are simply being carried along with that cosmological expansion.

    Last edited: Nov 13, 2004
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