|MadSci Network: Astronomy|
If a certain object is said to be, say, 15 billion light years away, that means that the light we are seeing left that object 15 billion years ago. At that time, it must have been much closer. If that's the case, why didn't the light already get "here"? And if objects that are that old, or older (20 billion LY?) are said to define the "edge" of the universe, and therefore presumably represent the beginning of the universe, does that mean that they were fully formed (at least to the extent that we are observing them now) at that point?
Re: Something about the Big Bang puzzles me.
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