China finished the world's largest single-aperture telescope
 

For the past 53 years, Puerto Rico's Arecibo Observatory has been the king of radio telescopes. No more. China has just finished construction of its Five hundred meter Aperture Spherical Telescope (FAST), which is 64-percent larger. That makes it the...

https://www.engadget.com/2016/07/05/...tion-complete/