Arecibo Observatory

The Arecibo Observatory, also known as the National Astronomy and Ionosphere Center, is an observatory in Puerto Rico owned by the US National Science Foundation. The observatory’s main feature was its large radio telescope, whose main collecting dish was an inverted spherical dome 1,000 feet in diameter. On December 1, 2020 the main telescope collapsed before controlled demolition could be conducted.

About Arecibo Observatory in brief

Summary Arecibo ObservatoryThe Arecibo Observatory, also known as the National Astronomy and Ionosphere Center, is an observatory in Puerto Rico owned by the US National Science Foundation. The observatory’s main feature was its large radio telescope, whose main collecting dish was an inverted spherical dome 1,000 feet in diameter with an 869-foot radius of curvature, constructed inside a karst sinkhole. On December 1, 2020 the main telescope collapsed before controlled demolition could be conducted.

It was the world’s largest single-aperture telescope for 53 years, surpassed in July 2016 by the Five-hundred-meter Aperture Spherical Telescope in China. Since its completion in November 1963, the Telescope had been used for radar astronomy and radio astronomy, and had been part of the Search for extraterrestrial intelligence program.