
Listener Questions: the expanding observable Universe, what it's like to be a photon and the age of the Universe
Daniel and Kelly’s Extraordinary Universe
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The Expansion of Space Is Stronger Than Local Gravity, and Its Adding Up
We can see much further than 13 point eight billion light years away, which is the age of the universe times the speed of light. The reason is that we can see photons from stuff that's now much further away because space has been expanded. While special relativity says nothing can move through space faster than the speed of light, ire's no limit to how fast space itself can expand. And therea objects out there whose distance is growing faster than thespeed of light will never be seen by us.
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