An artist's impression of the ELT, the Extremely Large Telescope. Credits eso.org

Construction is underway at Cerro Armazones -- the future home of the Extremely Large Telescope (ELT). Credits eso.org

The New E-ELT Design Unveiled. Credits eso.org

Latest designs of the GMT enclosure, telescope, and site at Las Campanas Observatory in Chile. Credits gmto.org

Full concept animation of the GMT. Credits gmto.org

GMT site construction September 4, 2018. Credits gmto.org