Hmmm. I was just looking this over a couple of days ago. On Nov 19 2020, NPR was already reporting that "Sean Jones, Director for the Mathematical and Physical

Hmmm. I was just looking this over a couple of days ago. On Nov 19 2020, NPR was already reporting that "Sean Jones, Director for the Mathematical and Physical Sciences Directorate at the NSF, said the telescope will be dismantled. ... after receiving ... the engineering assessments, we have found no path forward that would allow us to do so safely..." https://www.npr.org/2020/11/19/936677582/world-renowned-arecibo-telescope-set-to-be-dismantled https://www.npr.org/2020/11/19/936677582/world-renowned-arec... In retrospect, it seems that, -at its age- the design got in the way of repairs. The scope made possible a lot of great finds in its day, but it'd become too weak to save.