Question

What are the boundaries of the Universe?

Answer 1

Answer:

The universe (observable or otherwise) has no boundary in the physical sense. This is one of the most commonly seen misunderstandings about physical cosmology. The universe is not a bubble expanding into a preexisting volume. The universe exists everywhere and and is approximately the same everywhere.

Answer 2

What are the boundaries of the Universe?

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There is no evidence of boundaries of the universe. The boundaries of universe was limitless, It cannot be measured.