Eric Walker added Requiem for the Arecibo Telescope of Puerto Rico - The New York Times to Arecibo

Eric Walker added Arecibo, Puerto Rico - Wikipedia to Arecibo

Eric Walker added The Collapse of Puerto Rico’s Iconic Telescope | The New Yorker to a number of topics

Eric Walker added Arecibo Observatory and a number of links to Arecibo, and added Arecibo to Puerto Rico

Eric Walker added Arecibo and The Trump administration and Puerto Rico and a number of links to Puerto Rico, and added Puerto Rico to United States dependencies

Eric Walker added Arecibo Observatory radio telescope and Arecibo Observatory - Wikipedia to Arecibo Observatory, and added Arecibo Observatory to Arecibo and Observatories