ESO’s VLT Working as 16-metre Telescope for First Time – ESPRESSO instrument achieves first light with all four Unit Telescopes

ESO’s VLT Working as 16-metre Telescope for First Time – ESPRESSO instrument achieves first light with all four Unit Telescopes

The ESPRESSO instrument on ESO’s Very Large Telescope in Chile has for the first time been used to combine light from all four of the 8.2-metre Unit Telescopes. Combining light from the Unit Telescopes in this way makes the VLT the largest optical telescope in existence in terms of collecting area.

Source: www.eso.org/public/news/eso1806/