ESO Completes Dome Frame for World’s Largest Telescope
The European Southern Observatory’s (ESO) Extremely Large Telescope (ELT), the world’s largest visible- and infrared-light telescope, is nearing completion. The dome’s frame has been completed, marking a key milestone in the observatory’s construction. The dome measures 305 feet in diameter and stands 263 feet tall. To protect the ELT from extreme temperatures in the Atacama … Read more