Observatories in Chile’s Atacama Desert, including the world’s largest optical telescope, could be blinded by light pollution ...

The European Southern Observatory's (ESO) Extremely Large Telescope (ELT) — the world's largest visible- and infrared-light telescope — is currently under development on the Cerro Armazones mountain ...

It is known that the M1 alone will consist of 798 glass-ceramic hexagonal segments, each of which is about 5 centimeters ...

The European Southern Observatory's (ESO) Extremely Large Telescope ... or about the size of a football field and stands 263 feet (80 meters) tall. The dome will house the ELT, which aims to ...

The frame of the dome that will house the world's largest telescope has been completed, marking another key milestone in the observatory's construction. The European Southern Observatory's (ESO) ...