Drone footage shows giant Arecibo Observatory collapsing in Puerto Rico

Footage released by the National Science Foundation shows the moment a huge radio telescope collapsed in Puerto Rico on Tuesday. The Arecibo Observatory played a key role in astronomical discoveries for more than half a century but had been scheduled for demolition in November by the US National Science Foundation because of pre-existing damage. Subscribe to Guardian News on YouTube ► The telescope’s 900-ton receiver platform fell onto the reflector dish more than 400 feet