Congrats to all the highly-deserving winners of the 2021 ICTP Dirac Medal! We're proud to see the work of our colle… https://t.co/4K4T7WpZuo
We don't know. We know that it's been around for at least 10 billion years, and the light in our Universe has been traveling since then. Thus, if the "edge" of the Universe exists, it is at least 10 billion light-years away from us. It's possible that the Universe is bigger than that, though — maybe even infinitely large!