Photo taken on June 27, 2016 shows the five-hundred-meter Aperture Spherical Telescope, or “FAST,” at sunset in Pingtang county, southwest China’s Guizhou province. Construction of the world’s largest telescope FAST started in March 2011. The telescope will be used to detect and collect signals and data from the universe. [Photo/Xinhua]

Photo taken on June 27, 2016 shows the five-hundred-meter Aperture Spherical Telescope, or “FAST,” at sunset in Pingtang county, southwest China’s Guizhou province. Construction of the world’s largest telescope FAST started in March 2011. The telescope will be used to detect and collect signals and data from the universe. [Photo/Xinhua]

Photo taken on June 27, 2016 shows the five-hundred-meter Aperture Spherical Telescope, or “FAST,” at sunset in Pingtang county, southwest China’s Guizhou province. Construction of the world’s largest telescope FAST started in March 2011. The telescope will be used to detect and collect signals and data from the universe. [Photo/Xinhua]