The Arecibo Observatory (IMAGE) U.S. National Science Foundation Caption This is the Arecibo Observatory in Puerto Rico. Credit NAIC Arecibo Observatory, a facility of the NSF Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.