"World's Largest Telescope Construction Begins Under Milky Way's Glow"

The European Southern Observatory's Extremely Large Telescope, the world's largest visible- and infrared-light telescope, has reached a milestone with the completion of its dome's steel skeleton in Chile's Atacama Desert. A new nighttime photo shows the progress with the Milky Way overhead. The telescope, expected to be operational by 2028, will feature insulated cladding and air conditioning to protect it from the harsh desert environment.