Modern research scopes do even better. When I was getting into astronomy in the 80s, the Mt. Palomar 6m telescope was the largest. A traditional reflector. Now we’re on our way to 30 thanks to interferometric techniques that use segmented hexagonal mirrors https://www.forbes.com/sites/startswithabang/2017/01/25/worlds-largest-telescope-will-revolutionize-the-future-of-astronomy/#233260d8516b …pic.twitter.com/jZtxqKuBfE

I never enjoyed optics