The Robert C. Byrd Green Bank Telescope (GBT) in Green Bank, West Virginia, has a lot in common with the telescope at Arecibo, Puerto Rico. Until recently, Arecibo had the world’s largest radio telescope. GBT is the world’s largest fully steerable radio telescope. Both telescopes have been used in history-making research on pulsars and for listening … Continue reading A Tale of Two Telescopes: Arecibo and Robert Byrd GBT