Reports are appearing that the central instrumentation package of the telescope has fallen. Arecibo was already due to be decommissioned & dismantled soon as support cables had fallen through and torn the dish in August and November this year. This is the part that fell today:- See Wikipedia for full details.
What are we supposed to throw Sean Bean off now?! Also, F for the setting of one of my favourite Battlefield maps. Less flippantly, that's going to be a big loss to astronomy, wonder what will get built to replace it and where. Also, hope nobody was in/under it at the time.
Puerto Rico tweets show it now looking like this:- There's still China's 500-meter jobby, but getting the funds for an Arecibo 2 is going to be tricky at best.