China`s 500-meter FAST radio telescope is now operational
(PHYSorg.com Space & Earth)

The world`s largest and most sensitive radio telescope is officially open for business, according to Xinhua, China`s official state-run media. The FAST Radio Telescope saw fist light in 2016, but has been undergoing testing and commissioning since then. FAST stands for Five-hundred meter Aperture Spherical Telescope.