Here's a link to the article.
I'm curious as to how it manages to manipulate the 800 hex segments in order to produce a good image. I thought primary mirrors had to be polished to micrometer tolerances for clarity.
Are the individual hex segments themselves warped by machine/computer to achieve proper curvature?
I'm still in awe of the size -- 39 meters! When I first became interested in Astronomy, the Hale Telescope (Mt. Palomar) was still the largest at 200 inches. The ELT, at 1,535 inches, is 7.6 times larger in diameter, but has almost 60 times the light-gathering area!