I always find these kinds of discoveries a little sad. Why? Because we are mostly seeing things that are permanently out of reach. Anything beyond about a billi

I always find these kinds of discoveries a little sad. Why? Because we are mostly seeing things that are permanently out of reach. Anything beyond about a billion light years away is moving awa from us so fast that even moving a significant percentage of the speed of light we would never be able to reach. And we're seeing things where the light has been travelling for 10+ billion years. The objects themselves might be 40B+ light years away (due to universe expansion). The estimate on the current observable universe is 94B LY across or a radius of 47B LY. That means we can only possibly reach 1/100,000th of the entire observable universe and this is the theoretical limit. It may reach the point that we eventually spot clear evidence of a spacefaring civilization (eg we could detect a K3 civilization from billions of light years away) and have no hope of ever reaching or even communicating with them. Maybe that's just as well otherwise we'd be extinguished like a bug at some point. Still, the universe is so incredibly vast (arguably the actual universe is infinite) but almost all of it is permanently out of reach.