Workers install a feedback source cabin for the single-aperture spherical telescope “FAST” in Pingtang county, southwest China’s Guizhou province, June 21, 2016. The 500-meter aperture spherical telescope (FAST), to be completed within 2016, is expected to be the world’s largest, overtaking Puerto Rico’s Arecibo Observatory, which is 300 meters in diameter. [Photo/Xinhua]
Photo taken on June 21, 2016 shows the single-aperture spherical telescope “FAST” in Pingtang county, southwest China’s Guizhou province.[Photo/Xinhua]
Photo taken on June 21, 2016 shows the single-aperture spherical telescope “FAST” in Pingtang county, southwest China’s Guizhou province.[Photo/Xinhua]
Photo taken on June 21, 2016 shows the single-aperture spherical telescope “FAST” and a viewing platform in Pingtang county, southwest China’s Guizhou province.[Photo/Xinhua]
