Question: Is the universe infinite? Or just very big?

Vicky Fawcett answered on 24 Mar 2023:

Great question! The short answer is, we don’t know!
We know the Universe started from a tiny point at the Big Bang and has been expanding and growing ever since. It might be infinite or it might have an edge, but it is so big that the light at the “potential edge” has not had the time to travel to us yet, so we can’t see the whole universe to know if it had an edge.