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. Kieran McCallHARMONI Spectrograph Clean Room Technician (cryo / vacuum) Sub departmentAstrophysics kieran.mccall@physics.ox.ac.uk Telephone: 01865 (2)73502 Denys Wilkinson Building, room 358 About