Meeting of the royal astronomical society: Friday 2007 May 11th at 16h 00m in the Geological Society Lecture Theatre, Burlington House - Rowan-Robinson, M; Lintott, C; Fletcher, L; Smith, G; Trotta, R; Barber, G; Hood, A; Stanley, G; Diego, F; Weiss, N; Kollerstrom, N; Murdin, P (2007)