The Five-hundred-meter Aperture Spherical radio Telescope utilize the depression in the Karst region in Guizhou province as its site. It is the largest single aperture radio telescope in the world, with an area of about 30 football fields. FAST will keep its leading position for the upcoming 20 to 30 years. The innovative design along with the unprecedented site help it push the limiting aperture of about 100 m of a traditional telescope and create a new regime of large telescope construction.
1. Observe the HI (neutral hydrogen) to the edge of the universe, reconstruct the picture of the early universe.
2. Find more then one thousand pulsars. Constructing pulsar timing array. Participate the pulsar navigation and gravitational wave detection.
3. Join the VLBI network. Obtain fine structure of objects.
4. Perform high resolution radio survey. Detect weak space signals.