Construction of the world's largest telescope has reached its highest point with assembly of the roof's dome and large sliding doors that will shield the observatory. The European Southern Observatory ...

Early simulations show that it would take only 10 hours for the forthcoming ELT to find signs of life near Proxima Centauri. Share on Facebook (opens in a new window) Share on X (opens in a new window ...

In Chile’s Atacama Desert, scientists are building the Extremely Large Telescope, the biggest optical telescope ever ...

Deep in the Chilean desert, the European Extremely Large Telescope (ELT) is currently under construction. Operated by the European Southern Observatory (ESO), the ELT's design features a 128-foot-wide ...

The Extremely Large Telescope (ELT), currently under construction in northern Chile, will give us a better view of the Milky Way than any ground-based telescope before it. It's difficult to overstate ...

The world's largest optical telescope is seen taking shape in an amazing image. The European Southern Observatory's Extremely Large Telescope (ELT) is being constructed on the Cerro Armazones mountain ...

The Extremely Large Telescope (ELT) is an observatory currently under construction. When completed, it is planned to be the world's largest optical/near-infrared extremely large telescope. Learn about ...

The massive dome measures 305 feet (93 meters) in diameter, or about the size of a football field and stands 263 feet (80 meters) tall. When you purchase through links on our site, we may earn an ...

CC0 Usage Conditions ApplyClick for more information. The Extremely Large Telescope (ELT) is an observatory currently under construction. When completed, it is planned to be the world's largest ...