Arecibo was in the news recently, regarding it's decommissioning and controlled dismantling [0]. Here's a more detailed account of the collapse [1]. Looks like

Arecibo was in the news recently, regarding it's decommissioning and controlled dismantling [0]. Here's a more detailed account of the collapse [1]. Looks like they called it, and it just happened quicker than expected. [0]: https://www.sciencemag.org/news/2020/11/famed-arecibo-telescope-brink-collapse-will-be-dismantled https://www.sciencemag.org/news/2020/11/famed-arecibo-telesc... [1]: https://www.theverge.com/2020/12/1/21754959/arecibo-observatory-platform-collapse-dish-puerto-rico-telescope https://www.theverge.com/2020/12/1/21754959/arecibo-observat...