Why is there a normal galaxy sitting at the edge of the Universe?

Re:Why is there a normal galaxy sitting at the edge of the U... by Swizec on Wednesday September 09, 2020 @04:02PM (#24425292)

My high school physics professor had a great take on this: The universe is defined as “everything”. If we ever find anything outside the universe, we’ll call that the universe too.

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Re:Why is there a normal galaxy sitting at the edge of the U... by whatshisface on Wednesday September 09, 2020 @04:07PM (#24425335)

That doesn't really answer the question, what the parent is really asking about is whether we are living on the surface of a manifold that's due for some kind of a collision with something else.

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Re:Why is there a normal galaxy sitting at the edge of the U... by GlennS on Thursday September 10, 2020 @12:14AM (#24428830)

The atom used to be defined as the smallest indivisible thing, but we didn't rename it when we learned that you could split them into smaller things.

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