The Signing Ceremony with Poland (IMAGE) ESO Caption The ESO accession agreement with Poland was signed on 28 October 2014 in Warsaw, by Professor Lena Kolarska-Bobioska, the Polish Minister of Science and Higher Education and ESO's Director General Tim de Zeeuw, in the presence of other senior officials from Poland and ESO. Credit ESO Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.