Profesor Andrzej Udalski is the leader of one of the world’s largest astronomical projects – the photometric survey of the sky variability: the Optical Gravitational Lensing Experiment (OGLE). This project has been operating continuously since 1992 and has been producing state-of-the-art astronomical discoveries in many fields of modern astrophysics for more than 30 years.

Professor Udalski manages all aspects of the OGLE project – scientific goals, construction of top-class scientific instruments for the Warsaw telescope in Chile, software for collecting and analyzing data and interpretation of the obtained results. The Professor’s works played a pioneering role in the development of a new field of research – the so-called time domain astronomy. They have had a groundbreaking impact on many fields of modern astrophysics: gravitational microlensing, extrasolar planets, variable stars, stellar astrophysics, the structure of the Milky Way and the Magellanic Clouds, calibration of the distance scale in the Universe, and the discovery of large objects in the Solar System.

Professor Udalski is a member of the Polish Academy of Sciences, the Polish Academy of Arts and Sciences and – since 2012 – a foreign member of the US National Academy of Sciences. In 2009, Professor Udalski was awarded the ERC Advanced Grant.