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How can the universe be expanding faster than light?

Answer 1

The expansion of the universe is not resulting in matter moving faster than the speed of light, only that the "edge" of the universe is travelling outward at a rate great than #c#.

The expansion of the universe does not mean that matter is being moved at a speed greater than #c#, but only that space is being created at a rate that is greater than the speed of light. Thus, no violation of the "speed limit" that the speed of light imposes has occurred.

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Answer 2

Elena Antonova

Space itself is expanding, carrying galaxies away from one another; objects within space cannot travel faster than light, but the space between them can stretch at rates faster than light, which is why the universe's expansion does not break the speed of light limit.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.