Valley Full of Telescopes
The Green Bank site, circa 1971, viewed from the southwest. The largest dish is the 300-foot with its new surface panels. Behind it to the left is the 140-foot (43-meter), still the largest polar-aligned telescope in the world. And the line of three identical dishes is the Green Bank Interferometer (GBI), the 85-footers working together as our first array. Their control building is off the connecting road to the left, and the tower with the dish atop collects data from a fourth, remote telescope of the array.
Credit: NRAO/AUI/NSF
