Lensing of space time around a black hole. At Oxford we study black holes observationally and theoretically on all size and time scales - it is some of our core work. Credit: ALAIN RIAZUELO, IAP/UPMC/CNRS. CLICK HERE TO VIEW MORE IMAGES. Prof. Ofer LahavVisiting Professor in Physics Sub departmentAstrophysics ofer.lahav@physics.ox.ac.uk About Prof. Ofer Lahav, Perren Chair of Astronomy, University College London https://www.ucl.ac.uk/astrophysics/professor-ofer-lahav Research interests Cosmology Galaxy Surveys Machine Learning