The European Extremely Large Telescope is set to become the world's largest optical telescope.

This video details the approval of the European Extremely Large Telescope, a massive project designed to dominate the field of optical and near-infrared astronomy. It provides context on the project's scale and the official green light that initiated its first construction phase.

In early December 2014, the ESO Council officially authorized the first construction phase for the European Extremely Large Telescope, or E-ELT. Once completed, this facility will stand as the largest optical and near-infrared telescope globally, representing a significant leap in observational capability.

The project involves extensive collaboration, featuring contributions from various instrument consortia such as METIS, MAORY, MICADO, and HARMONI. The video production, directed by Herbert Zodet, highlights the technical and design efforts led by a team including Martin Kornmesser and Luis Calçada.

Source: ESOcast 70: Green Light for E-ELT Construction | ELT Updates