Green Bank Observatory
The Green Bank site, circa 1980, in an aerial shot from the north. The telescopes are, from left to right, the 85-foot Howard E. Tatel, the 40-foot, the 85-3 and 85-2 elements of the Green Bank Interferometer, and 300-foot, and the 140-foot (43-meter) in its downward aiming maintenance position. A fourth member of the GBI, the 42-foot, would have been 13 miles away on a hilltop.
Credit: NRAO/AUI/NSF
