The National Science Foundation has released remarkable footage of the Arecibo Observatory's 900-ton platform falling into the 1,000-foot wide (305 meters) dish below. A drone happened to be performing an up-close investigation of the cables that hold the platform above the dish as they snapped. Videos released Thursday by NSF show both the drone footage and the view from a camera in the visitor center that shows the platform falling into the dish just above the jungle floor in Puerto Rico. Two massive chu
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