Dr. Andrew Williams is responsible for external relations at the European Southern Observatory (ESO) – an intergovernmental organisation of 16 Member States that constructs and operates world-leading astronomical facilities and fosters international cooperation. Dr. Williams supports strategic relationships with current and future Member States, the EU, UN, and international organisations such as ESA and CERN. He represents ESO at the UN Committee on the Peaceful Uses of Outer Space and is co-lead of the Policy Hub of the International Astronomical Union (IAU) Centre for the Protection of the Dark And Quiet Sky From Satellite Constellation Interference. He serves as ESO’s representative on the Executive Board of ATTRACT – a €55 million project to create a breakthrough technology innovation process using ‘Big Science’ research facilities. He has a degree in theoretical physics and a doctorate in public policy.