The European Organization for Astronomical Research (ESO) is one of the world’s leading research organizations. It is dedicated to astronomy and astrophysics, and operates the La Silla Paranal Observatory in the Atacama Desert in Chile, on behalf of its thirteen member states. Here, ESO operates several optical telescopes with mirror diameters of up to 8.2 meters. The VLT, a complex of 8.2 meters telescopes able to operate either jointly or

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