National Radio Astronomy Observatory

NATIONAL RADIO ASTRONOMY OBSERVATORY 140-Foot Radio Telescope Green Bank, West Virginia Completed in the Spring of 1965, the 140-foot is the largest equatorially mounted telescope in the world. Mainstay of astronomy at NRAO, the 140-foot has always been subject to a heavy load of observing requests. 41135262 Photo by Margaret B. Weems Copyright 1987 by NRAO/AUI