Major Milestone for GBT: Active Surface Sharpens View The Green Bank Telescope. The Robert C. Byrd Green Bank Telescope (GBT), the world's largest fully steerable radio telescope, has achieved a technology first by the successful deployment of the active surface of its dish. The active surface is a fundamental and critical feature of the GBT, said Phil Jewell, site director of the National Radio ...

Major Milestone for GBT: Active Surface Sharpens View The Green Bank Telescope. The Robert C. Byrd Green Bank Telescope (GBT), the world's largest fully steerable radio telescope, has achieved a technology first by the successful deployment of the active surface of its dish. The active surface is a fundamental and critical feature of the GBT, said Phil Jewell, site director of the National Radio ...