ESO Signs Largest Ever Ground-based Astronomy Contract for E-ELT Dome and Telescope Structure in Cerro Armazones, Atacama, Chile May 2016

The E-ELT is being built on Cerro Armazones, a 3000-metre peak about 20 kilometres from ESO’s Paranal Observatory, Atacama desert, Chile. Construction of the dome and telescope structure will now commence.
Since 2005 ESO has been working with its community and industry to develop an extremely large optical/infrared telescopes.

Dubbed E-ELT for European Extremely Large Telescope, this revolutionary new ground-based telescope concept will have a 39-metre main mirror and will be the largest optical/near-infrared telescope in the world: “the world’s biggest eye on the sky”.

The E-ELT programme was approved in 2012 and green light for construction was given at the end of 2014. First light is targeted for 2024.

At a ceremony in Garching bei München, Germany, on 25 May 2016, ESO signed the contract with the ACe Consortium, consisting of Astaldi, Cimolai and the nominated sub-contractor EIE Group, for the construction of the dome and telescope structure of the European Extremely Large Telescope (E-ELT). This is the largest contract ever awarded by ESO and also the largest contract ever in ground-based astronomy. This occasion saw the unveiling of the construction design of the E-ELT.

For more information here Link