Quiet Zone: 703

The Robert C. Byrd Green Bank Telescope towers over farmland as dusk falls in Green Bank, W.Va. Officials at the National Radio Astronomy Observatory chose the site for its remote location and mountainous surroundings, which help to keep distant radio waves outside of the quiet zone at bay, while interference inside the zone is restricted by state and federal laws. The quiet zone enables scientists to hear faint signals from outer space that would otherwise be easily obscured by man-made interference.

The Robert C. Byrd Green Bank Telescope towers over farmland as dusk falls in Green Bank, W.Va. Officials at the National Radio Astronomy Observatory chose the site for its remote location and mountainous surroundings, which help to keep distant radio waves outside of the quiet zone at bay, while interference inside the zone is restricted by state and federal laws. The quiet zone enables scientists to hear faint signals from outer space that would otherwise be easily obscured by man-made interference.