Puerto Rico Telescope

Puerto Rico Telescope

FILE – This July 13, 2016 photo shows the world’s largest single-dish radio telescope at the Arecibo Observatory in Arecibo, Puerto Rico. The National Science Foundation announced Oct. 13, 2022 that it will not rebuild the renowned radio telescope, which was one of the world’s largest until it collapsed in August 2020. (AP Photo/Danica Coto, File)