FAST, or the Five-hundred-meter Aperture Spherical radio Telescope, is the 
largest radio telescope in the world. It is not only an achievement of Chinese 
astronomical science and technology, but marks an important step in the 
astronomical exploration of mankind.

Chinese scientist Nan Rendong first proposed the idea of building FAST in 1994. 
In the following 12 years, Nan and his team screened out 391 potential hollows 
in the mountains of Guizhou. Finally, they selected a unique site that was most 
suitable for the construction of FAST. This site is free from nearly any 
interference of human activity signals. And there are many sunken limestone 
caves which form a natural “sinkhole” that can support the astronomical 
equipment. 

To improve the flexibility of the telescope, Chinese scientists independently 
developed an automatic reflector, which can adjust the cable net structure to 
enable FAST to automatically capture signals from outer space.

After FAST began operating in 2017, more and more scientists, from both China 
and abroad, have come to Guizhou. As a big fan of space exploration, British 
vlogger Oli Barrett set off on a trip to explore FAST. He was astonished by the 
massive radio telescope and touched by the story of Chinese scientist Nan 
Rendong who had devoted his whole life to the advancement of science.

Contact: Zeng Wei
Tel：008610-68996566  
E-mail：milkandwater@163.com 
YouTube Link: https://youtu.be/tp3CEcG18nc

Video - https://youtu.be/tp3CEcG18nc
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SOURCE:China Matters