It’s an unbelievably sad day for the Arecibo Observatory in Puerto Rico. After two major cable failures, the telescope is on the brink of an uncontrolled collapse and the NSF has decided to demolish the structure. https://t.co/qdtyM0DZ5o pic.twitter.com/dBYbtoLYMP

— Loren Grush (@lorengrush) November 19, 2020