I am no longer a full-time member of the School of Physics and Astronomy, University of Birmingham. I am currently not in charge of public outreach, postgraduate admissions or the Wast Hills Observatory, and, since 2012, am not offering doctoral supervision to any new PhD students. Please contact Dr Ilya Mandel (i.mandel@bham.ac.uk) for information about PhD admission, and Dr Graham Smith (gps@star.sr.bham.ac.uk) for the Wast Hills Observatory.