FAST is a radio telescope located in the Dawodang depression a natural basin in Pingtang County, Guizhou Province, southwest China. It consists of a fixed 500 m (1,600 ft) diameter dish constructed in a natural depression in the landscape. It is the world's largest filled-aperture radio telescope, and the second-largest single-dish aperture after the sparsely-filled RATAN-600 in Russia.The telescope was first proposed in 1994. The project was approved by the National Development and Reform Commission (NDRC) in July 2007.
Science mission:
1- Large scale neutral hydrogen survey
2- Pulsar observations
3- Leading the international very long baseline interferometry (VLBI) network
4- Detection of interstellar molecules
5- Detecting interstellar communication signals
6- Pulsar timing arrays
About 500 families tried to sue the local government. Villagers accused the government of forced demolitions, unlawful detentions and not giving compensation. Around 8,000 people had to be relocated. The Chinese government spent around $269 million in poverty relief funds and bank loans for the relocation of the local residents, while the construction of the telescope itself cost $180 million.
![Bottom_view_from_one_of_FAST's_six_support_towers.jpg]
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