https://apnews.com/0da6abb251f455977bf0c752348e712e > SAN JUAN, Puerto Rico (AP) — A huge radio telescope in Puerto Rico that has long played a key role in astronomical discoveries collapsed on Tuesday, officials said. > The Arecibo Observatory had been shuttered since August after an auxiliary cable snapped and caused a 100-foot gash on the reflector dish. Then a main cable broke in early November, leading the National Science Foundation to declare just weeks later that it planned to close the radio telescope because the damage was too great.