The Five-hundred-meter Aperture Spherical radio Telescope (FAST), a single-dish telescope with a diameter of half a kilometer and a receiving area equivalent to about 30 football fields, was officially taken in operation. It is located in a naturally deep and round karst depression in Southwest China’s Guizhou province.
Xinhua news release, January 13, 2020
FAST radiotelescope in Guiyang officially in operation