... ESO, the European Southern Observatory . ... Director General . List of Directors General . ... ESO's Governing Bodies . Member States . ... Travel to ESO Headquarters . ... Visits to ESO Sites . ... ESO . ... Tim de Zeeuw, ESO Director General, and Rafael Rebolo, IAC Director, are shown around the Optical Ground Station at Teide Observatory (Tenerife). During the visit they signed an agreement between both institutions to perform experiments on adaptive optics at the Teide Observatory. ...