World's Largest Telescope Now Has a Construction Contract

Construction will soon begin on what is slated to be the largest optical telescope ever built. Today (May 25), the European Southern Observatory announced that it has selected a contractor to build the dome and main facility of the European Extremely Large Telescope (E-ELT) in the mountains of the Atacama Desert in Chile. The E-ELT will have an aperture of 127 feet (39 meters).