The Universe is bigger than was thought.

[Jehanne]

Hubble (the astronomer, not the telescope) worked out the universe was expanding with galaxies spread over a (comparatively) tiny distance away from us compared to what his namesake telescope can detect.

I don't if any of the new (earth based) telescope proposals are designed to, let's say, equal the Hubble telescopes magnitude limit in a much shorter time than Hubble does and cover a much larger chunk of the sky while doing it, but clearly, the utility of such a telescope is evident.

There's the OWL telescope (now canceled, but still possible someday):

https://en.wikipedia.org/wiki/Overwhelmi..._Telescope

It's design is for a telescope that is 100 meters across.  I still have my 10.1-inch Odyssey Telescope (now defunct) that I bought in the early 80s:



It's incredible what one can see with this thing, from 43x up to 192x (in magnification).  I grew-up in a fundamentalist, evangelical Church and was often told that the "Universe was created with age", but when one looks it, of course, it is younger the farther out one goes!  And, of course, why "God" would be so meticulous in creating crater after crater on the Moon, some on top of each other while ignoring some other areas (maria) was enough for me, as a high school student, to abandon the whole monstrosity of Biblical inerrancy.