What does it mean that the universe is expanding?

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Is stuff getting bigger? Is empty space appearing making everything further apart? Why isn’t there a definable center, isn’t everything going away from a point?

ETA: thank you so much for the explanations. I think this might be one I can’t get my head around without some more work, but I really appreciate all the help!!

In: Physics

4 Answers

Anonymous 0 Comments

The universe is in fact getting larger.

Yes space is being created.

When the big bang happened it did not happen is space. It created space. So there was no center before it happened.

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