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China builds world’s biggest radio telescope in SW China

China starts with the construction of the world’s largest radio telescope in Southwest China’s Guizhou province.

Workers are assembling the last reflector panel for the single-aperture spherical telescope “FAST” in Pingtang county.

The 500-meter Aperture Spherical Radio Telescope, or FAST, has 4,450 triangular reflector panels. It is similar in design to the Arecibo Observatory, using a natural hollow to provide support for the telescope dish.