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  1. Arecibo Observatory - Wikipedia

  2. Arecibo, Puerto Rico - Wikipedia

  3. Arecibo Observatory collapses ahead of planned demolition

  4. Arecibo Telescope - Wikipedia

  5. Arecibo Observatory | Telescope, Collapse, Discoveries, & Facts

  6. What happened at the Arecibo Observatory? New inquiry …

  7. Arecibo News Media | National Science Foundation

  8. How the famed Arecibo telescope fell—and how it might rise …

  9. Legendary Arecibo telescope will close forever — scientists are …