Tunnel vision! Step inside the tunnels below our Paranal Observatory in #Chile. They connect the Unit Telescopes, which comprise the Very Large Telescope (VLT), to the control building where the VLT and its instruments are operated by observing teams. And no worries: despite the eerie, sci-fi atmosphere, no drooling, man-eating aliens are roaming there, just astronomers and engineers 😉 Read more: https://www.eso.org/public/images/potw2624a/ 📷 L. Sbordone/ESO #astrodon #astronomy #astrophysics #space #science