China finished constructing the world’s largest radio telescope to hunt for signs of alien life in deep space.
The Five-hundred-meter Single-Aperture Radio Telescope, or FAST, contains 4,450 reflector panels with a diameter of 500 yards and is 30 football fields, according to the Xinhua news agency.
About 300 people witnessed the installation Saturday of the last triangular-shaped panel to the reflector in Pingtang County of the southwestern province of Guizhou.
The project was first conceived in 1994 and installation began in March 2011 with a cost of $105 million. It finished two months ahead of schedule. Read more