Why do radio astronomers need a new radio telescope?
History has shown that for any scientific discipline to remain active and productive, the power of its instrumentation must grow exponentially with time. Without this growth the discipline tends to stagnate and new discoveries are not made. Most of the currently used radio telescopes were built ten to thirty years ago. For radio astronomy to progress a new telescope with one hundred times the collecting surface of existing telescopes will be needed in about ten years time.