Research topic: Arecibo Observatory

Arecibo Observatory radio-astronomy facility located at Arecibo, Puerto Rico, that includes the world's largest single-dish radio telescope. It was completed in 1963 and is operated by Cornell Univ. under contract with the U.S. National Science Foundation. The principal instrument is a fixed antenna of spherical section, 1,000 ft (305 m) in diameter, that is built into a natural limestone bowl. Although the antenna is too large and heavy to be moved, it can be pointed as much as 20° from the zenith by moving the line feeds to the antenna's focus. As a result of the resurfacing of the... Read more